Grammar Analysis: Colossians 1:15–20¶

The great Christological hymn. Six verses, a tightly-structured poem of pre-existence, creation-mediation, cosmic cohesion, headship, and reconciliation, with repeated formulaic phrases (ta panta, en autō / di' autou / eis auton, twin ὅτι-clauses, twin autos estin + prōtotokos declarations) organized around two stanzas: creation (vv. 15–17) and new creation / reconciliation (vv. 18–20).

Text¶

Greek (NA28/THGNT):

v.15 ὅς ἐστιν εἰκὼν τοῦ Θεοῦ τοῦ ἀοράτου, πρωτότοκος πάσης κτίσεως,
v.16 ὅτι ἐν αὐτῷ ἐκτίσθη τὰ πάντα ἐν τοῖς οὐρανοῖς καὶ ἐπὶ τῆς γῆς, τὰ ὁρατὰ καὶ τὰ ἀόρατα, εἴτε θρόνοι εἴτε κυριότητες εἴτε ἀρχαὶ εἴτε ἐξουσίαι· τὰ πάντα δι' αὐτοῦ καὶ εἰς αὐτὸν ἔκτισται·
v.17 καὶ αὐτός ἐστιν πρὸ πάντων καὶ τὰ πάντα ἐν αὐτῷ συνέστηκεν,
v.18 καὶ αὐτός ἐστιν ἡ κεφαλὴ τοῦ σώματος, τῆς ἐκκλησίας· ὅς ἐστιν ἀρχή, πρωτότοκος ἐκ τῶν νεκρῶν, ἵνα γένηται ἐν πᾶσιν αὐτὸς πρωτεύων,
v.19 ὅτι ἐν αὐτῷ εὐδόκησεν πᾶν τὸ πλήρωμα κατοικῆσαι
v.20 καὶ δι' αὐτοῦ ἀποκαταλλάξαι τὰ πάντα εἰς αὐτόν, εἰρηνοποιήσας διὰ τοῦ αἵματος τοῦ σταυροῦ αὐτοῦ, δι' αὐτοῦ εἴτε τὰ ἐπὶ τῆς γῆς εἴτε τὰ ἐν τοῖς οὐρανοῖς.

KJV:

v.15 Who is the image of the invisible God, the firstborn of every creature:
v.16 For by him were all things created, that are in heaven, and that are in earth, visible and invisible, whether [they be] thrones, or dominions, or principalities, or powers: all things were created by him, and for him:
v.17 And he is before all things, and by him all things consist.
v.18 And he is the head of the body, the church: who is the beginning, the firstborn from the dead; that in all [things] he might have the preeminence.
v.19 For it pleased [the Father] that in him should all fulness dwell;
v.20 And, having made peace through the blood of his cross, by him to reconcile all things unto himself; by him, [I say], whether [they be] things in earth, or things in heaven.

Word-by-Word Parsing¶

v.15¶

#	Word	Lemma	Strong's	Parsing
1	ὅς	ὅς	G3739	R-NSM
2	ἐστιν	εἰμί	G1510	V-PAI-3S
3	εἰκὼν	εἰκών	G1504	N-NSF
4	τοῦ	ὁ	G3588	T-GSM
5	Θεοῦ	θεός	G2316	N-GSM
6	τοῦ	ὁ	G3588	T-GSM
7	ἀοράτου	ἀόρατος	G517	A-GSM
8	πρωτότοκος	πρωτότοκος	G4416	A-NSM-S
9	πάσης	πᾶς	G3956	A-GSF
10	κτίσεως	κτίσις	G2937	N-GSF

v.16¶

#	Word	Lemma	Strong's	Parsing
1	ὅτι	ὅτι	G3754	CONJ
2	ἐν	ἐν	G1722	PREP
3	αὐτῷ	αὐτός	G846	P-DSM
4	ἐκτίσθη	κτίζω	G2936	V-API-3S
5	τὰ	ὁ	G3588	T-NPN
6	πάντα	πᾶς	G3956	A-NPN
7	ἐν	ἐν	G1722	PREP
8	τοῖς	ὁ	G3588	T-DPM
9	οὐρανοῖς	οὐρανός	G3772	N-DPM
10	καὶ	καί	G2532	CONJ
11	ἐπὶ	ἐπί	G1909	PREP
12	τῆς	ὁ	G3588	T-GSF
13	γῆς	γῆ	G1093	N-GSF
14	τὰ	ὁ	G3588	T-NPN
15	ὁρατὰ	ὁρατός	G3707	A-NPN
16	καὶ	καί	G2532	CONJ
17	τὰ	ὁ	G3588	T-NPN
18	ἀόρατα	ἀόρατος	G517	A-NPN
19	εἴτε	εἴτε	G1535	CONJ
20	θρόνοι	θρόνος	G2362	N-NPM
21	εἴτε	εἴτε	G1535	CONJ
22	κυριότητες	κυριότης	G2963	N-NPF
23	εἴτε	εἴτε	G1535	CONJ
24	ἀρχαὶ	ἀρχή	G746	N-NPF
25	εἴτε	εἴτε	G1535	CONJ
26	ἐξουσίαι	ἐξουσία	G1849	N-NPF
27	τὰ	ὁ	G3588	T-NPN
28	πάντα	πᾶς	G3956	A-NPN
29	δι'	διά	G1223	PREP
30	αὐτοῦ	αὐτός	G846	P-GSM
31	καὶ	καί	G2532	CONJ
32	εἰς	εἰς	G1519	PREP
33	αὐτὸν	αὐτός	G846	P-ASM
34	ἔκτισται	κτίζω	G2936	V-RPI-3S

v.17¶

#	Word	Lemma	Strong's	Parsing
1	καὶ	καί	G2532	CONJ
2	αὐτός	αὐτός	G846	P-NSM
3	ἐστιν	εἰμί	G1510	V-PAI-3S
4	πρὸ	πρό	G4253	PREP
5	πάντων	πᾶς	G3956	A-GPM
6	καὶ	καί	G2532	CONJ
7	τὰ	ὁ	G3588	T-NPN
8	πάντα	πᾶς	G3956	A-NPN
9	ἐν	ἐν	G1722	PREP
10	αὐτῷ	αὐτός	G846	P-DSM
11	συνέστηκεν	συνίστημι	G4921	V-RAI-3S

v.18¶

#	Word	Lemma	Strong's	Parsing
1	καὶ	καί	G2532	CONJ
2	αὐτός	αὐτός	G846	P-NSM
3	ἐστιν	εἰμί	G1510	V-PAI-3S
4	ἡ	ὁ	G3588	T-NSF
5	κεφαλὴ	κεφαλή	G2776	N-NSF
6	τοῦ	ὁ	G3588	T-GSN
7	σώματος	σῶμα	G4983	N-GSN
8	τῆς	ὁ	G3588	T-GSF
9	ἐκκλησίας	ἐκκλησία	G1577	N-GSF
10	ὅς	ὅς	G3739	R-NSM
11	ἐστιν	εἰμί	G1510	V-PAI-3S
12	ἀρχή	ἀρχή	G746	N-NSF
13	πρωτότοκος	πρωτότοκος	G4416	A-NSM-S
14	ἐκ	ἐκ	G1537	PREP
15	τῶν	ὁ	G3588	T-GPM
16	νεκρῶν	νεκρός	G3498	A-GPM
17	ἵνα	ἵνα	G2443	CONJ
18	γένηται	γίνομαι	G1096	V-2ADS-3S
19	ἐν	ἐν	G1722	PREP
20	πᾶσιν	πᾶς	G3956	A-DPN
21	αὐτὸς	αὐτός	G846	P-NSM
22	πρωτεύων	πρωτεύω	G4409	V-PAP-NSM

v.19¶

#	Word	Lemma	Strong's	Parsing
1	ὅτι	ὅτι	G3754	CONJ
2	ἐν	ἐν	G1722	PREP
3	αὐτῷ	αὐτός	G846	P-DSM
4	εὐδόκησεν	εὐδοκέω	G2106	V-AAI-3S
5	πᾶν	πᾶς	G3956	A-NSN
6	τὸ	ὁ	G3588	T-NSN
7	πλήρωμα	πλήρωμα	G4138	N-NSN
8	κατοικῆσαι	κατοικέω	G2730	V-AAN

v.20¶

#	Word	Lemma	Strong's	Parsing
1	καὶ	καί	G2532	CONJ
2	δι'	διά	G1223	PREP
3	αὐτοῦ	αὐτός	G846	P-GSM
4	ἀποκαταλλάξαι	ἀποκαταλλάσσω	G604	V-AAN
5	τὰ	ὁ	G3588	T-APN
6	πάντα	πᾶς	G3956	A-APN
7	εἰς	εἰς	G1519	PREP
8	αὐτόν	αὐτός	G846	P-ASM
9	εἰρηνοποιήσας	εἰρηνοποιέω	G1517	V-AAP-NSM
10	διὰ	διά	G1223	PREP
11	τοῦ	ὁ	G3588	T-GSN
12	αἵματος	αἷμα	G129	N-GSN
13	τοῦ	ὁ	G3588	T-GSM
14	σταυροῦ	σταυρός	G4716	N-GSM
15	αὐτοῦ	αὐτός	G846	P-GSM
16	δι'	διά	G1223	PREP
17	αὐτοῦ	αὐτός	G846	P-GSM
18	εἴτε	εἴτε	G1535	CONJ
19	τὰ	ὁ	G3588	T-APN
20	ἐπὶ	ἐπί	G1909	PREP
21	τῆς	ὁ	G3588	T-GSF
22	γῆς	γῆ	G1093	N-GSF
23	εἴτε	εἴτε	G1535	CONJ
24	τὰ	ὁ	G3588	T-APN
25	ἐν	ἐν	G1722	PREP
26	τοῖς	ὁ	G3588	T-DPM
27	οὐρανοῖς	οὐρανός	G3772	N-DPM

Key Grammatical Features¶

1. εἰκὼν τοῦ Θεοῦ τοῦ ἀοράτου (v.15) — predicate nominative + double-articular attributive genitive¶

Form: εἰκὼν is N-NSF predicate nominative of ἐστιν ("he is the image"); τοῦ Θεοῦ is an objective/relational genitive (image of God, the one imaged); τοῦ ἀοράτου is an attributive genitive in second-attributive position (article–noun–article–adjective: τοῦ Θεοῦ τοῦ ἀοράτου) — a syntactic slot reserved for attributives, not appositives.
Significance:
eikōn is anarthrous because it is a predicate nominative (Colwell's context); the article is unnecessary to mark definiteness when the noun stands as the predicate of a copula.
The second-attributive position (τοῦ Θεοῦ τοῦ ἀοράτου) is the strongest structural signal that ἀοράτου modifies Θεοῦ: "the God who-is invisible." The repeated article does not apply aoratos to Christ; it applies it to theos.
The logic is ocular: the invisible Father is made visible in the eikōn. An image is of the same substance as what it images (2 Cor 4:4; Heb 1:3 χαρακτὴρ τῆς ὑποστάσεως); eikōn is not a reduced copy but the manifest form of the original.
Word study: G1504-eikon
Grammar reference: genitive-of-quality-apposition (for the attributive-genitive frame)

2. πρωτότοκος πάσης κτίσεως (v.15) — the Arian misreading vs. the pre-eminence reading¶

Form: πρωτότοκος is A-NSM-S (substantival adjective, superlative morphology by form — the -tokos compound behaves as a superlative in the parser's tag); πάσης κτίσεως is a genitive whose kind is the interpretive question.
The Arian misreading (partitive genitive): "first-born of all creation" = "first among creation, first created thing." This requires πάσης κτίσεως to be a partitive (wholative) genitive (Wallace 84–86) — the whole of which prōtotokos is a part. Grammatically partitive requires the head noun to be a member of the class named by the genitive (cf. πρῶτος αὐτῶν "first of them"). Three decisive grammatical objections:
Lexical: πρωτότοκος in the LXX is repeatedly a rank-title detached from birth order — Ps 89:27 (88:28 LXX) πρωτότοκον θήσομαι αὐτόν, ὑψηλὸν παρὰ τοῖς βασιλεῦσιν τῆς γῆς (of David, last-born, explicitly made prōtotokos by royal appointment, paired with ὑψηλόν "highest"); Exod 4:22 υἱός πρωτότοκός μου Ἰσραήλ (of Israel as a nation). The semantic field is rank/heirship, not chronology.
Syntactic: v.16 begins ὅτι ("because") and grounds v.15 in the statement that ἐν αὐτῷ ἐκτίσθη τὰ πάντα — all things were created in him. If πρωτότοκος πάσης κτίσεως meant "first created," v.16 would contradict it: the one "in whom all-created-things were created" cannot himself be within the set τὰ πάντα of v.16. The ὅτι-clause is explanatory, not corrective; v.16 tells us what v.15's title means.
Contextual: v.17 καὶ αὐτός ἐστιν πρὸ πάντων ("he is before all things") rules out his being first-in-the-series-of-created-things; v.18 immediately uses πρωτότοκος again — πρωτότοκος ἐκ τῶν νεκρῶν — where no one claims that Christ is the first-created dead person; the sense is clearly rank/priority in resurrection. The double use of πρωτότοκος in the same hymn pins the word to the rank/priority sense.
The pre-eminence reading (genitive of subordination / supremacy): πάσης κτίσεως is a genitive of subordination (Wallace 103–104) — the genitive noun names the realm over which the head noun has authority. "Firstborn over all creation" = heir and ruler of the entire created order. This is confirmed by v.18's ἵνα-clause: ἵνα γένηται ἐν πᾶσιν αὐτὸς πρωτεύων — the purpose-clause commentary on πρωτότοκος is prōteuōn, "holding the first place." The hymn itself glosses πρωτότοκος as prōteuōn, not as prōtoktistos.
The concord argument: If Paul had meant "first-created," Greek had the unambiguous word πρωτόκτιστος (attested in patristic vocabulary). He did not use it. Arius's exegesis had to supply a meaning the lexicon does not yield.
Word studies: G1504-eikon (context); gap flagged for canonical G4416-prōtotokos entry.
Grammar reference: gap flagged for canonical genitive-of-subordination entry.

3. ἐν αὐτῷ ἐκτίσθη τὰ πάντα … δι' αὐτοῦ καὶ εἰς αὐτὸν ἔκτισται (v.16) — aorist passive bracketing perfect passive, with triple prepositional relation¶

Form: Three prepositional relations frame the creation-act, inclusio-style:
ἐν αὐτῷ (dative of sphere/instrument) — "in him / by him" (locative-instrumental)
δι' αὐτοῦ (genitive of agency through the preposition διά) — "through him" (intermediate agency)
εἰς αὐτὸν (accusative of goal) — "for him / toward him" (telic)
The verbs are ἐκτίσθη (V-API-3S, aorist passive indicative — a divine/theological passive: the Father is the implied agent acting through the Son) and, closing the bracket, ἔκτισται (V-RPI-3S, perfect passive indicative).
Aorist → perfect shift: the aorist ἐκτίσθη views the creation-event as a single completed whole — the moment of creation; the perfect ἔκτισται views the same creation as a present standing state — "they stand created [and still do]." The tense-shift is deliberate: Christ did not merely initiate the cosmos (aorist), the cosmos perpetually stands created-in-him (perfect). This parallels the perfect συνέστηκεν in v.17.
Significance:
The ἐν αὐτῷ … εἰς αὐτὸν sweep (sphere → agency → telos) claims Christ is the locus, mediator, and goal of creation — three functions that are inalienably divine in Second Temple Jewish monotheism (cf. Rom 11:36 ἐξ αὐτοῦ καὶ δι' αὐτοῦ καὶ εἰς αὐτόν, predicated of God). Paul transfers the Rom 11:36 creational trinity of prepositions to Christ.
The eis auton ("for him, toward him as goal") is the sharpest break from Arian and Second-Temple Jewish wisdom-Christology: no created being, however exalted, can be the telos of creation. Creation is eis theon; here it is eis auton.
Grammar reference: divine-passive; aorist-passive-indicative; participle-perfect-passive-state (state-conceived perfect).
Word study: gap flagged for G2936-ktizō / G2937-ktisis.

4. αὐτός ἐστιν πρὸ πάντων (v.17) — emphatic pronoun + temporal-prioritarian πρό¶

Form: αὐτός is P-NSM nominative emphatic pronoun — Greek does not need the pronoun when the verb already encodes third-person; the presence of αὐτός carries contrastive emphasis ("he himself, and no other, is before all things"). ἐστιν is present indicative (not past); πρό + genitive is locative-temporal — "before," in rank or in time.
Significance:
prŏ pantōn is deliberately ambiguous between temporal priority (he existed before all things) and rank priority (he stands over all things) — and in context both hold simultaneously. Temporal reading is forced by the present-tense ἐστιν ("he is, right now, before all-things"): a being who merely used to exist before creation would take past-tense ἦν (cf. John 1:1 ἦν). The present is a timeless / gnomic present, asserting Christ's continuous prior-being — the same grammatical register as John 8:58 πρὶν Ἀβραὰμ γενέσθαι ἐγὼ εἰμί.
The emphatic αὐτός is repeated three times in the hymn (v.17 αὐτός ἐστιν; v.18 αὐτός ἐστιν … ἵνα γένηται ἐν πᾶσιν αὐτὸς πρωτεύων) — each αὐτός forces the subject back to Christ alone.
Grammar reference: gap flagged for canonical emphatic-nominative-pronoun / timeless-present entries.

5. τὰ πάντα ἐν αὐτῷ συνέστηκεν (v.17) — stative perfect of συνίστημι¶

Form: συνέστηκεν is V-RAI-3S, perfect active indicative 3rd singular of συνίστημι (intransitive active perfect functioning as a stative: "stand together, cohere, hold together"). The intransitive active perfect of a -μι verb in this class is semantically stative — present-state resulting from past action; Smyth §1946. It takes a neuter plural subject τὰ πάντα with a singular verb (standard Attic concord with collective neuter plurals, BDF §133).
Significance:
The perfect tense is the grammatical heart of Paul's cosmological claim: the universe "has been gathered together and still stands gathered" in him. Not "was assembled" (aorist) and not "is being assembled" (present progressive), but in a standing state of coherence because of an accomplished past act.
Lexically, συνίστημι in Hellenistic usage spans (a) recommend / present (Paul's usual sense in 2 Cor), (b) stand together, consist, and here (c) be held-together-in-coherence — the cosmological sense is standard in Stoic and Jewish-Hellenistic writers (Philo, On the Creation; Wis 1:7 τὸ συνέχον τὰ πάντα). The parallel synonym in Heb 1:3 is φέρων τε τὰ πάντα τῷ ῥήματι τῆς δυνάμεως αὐτοῦ.
Grammatically paired with ἔκτισται (v.16, perfect passive of κτίζω) — the two perfects form a matched doublet: all things stand created and stand held-together, both states grounded in Christ (ἐν αὐτῷ). Christ is thus not merely the initiator of creation (which a demiurge could be) but its present-tense ontological glue.
Grammar reference: participle-perfect-passive-state (the stative-perfect principle applies to both active and passive perfects).
Word study: gap flagged for canonical G4921-synistēmi entry.

6. ἵνα γένηται ἐν πᾶσιν αὐτὸς πρωτεύων (v.18) — final clause glossing πρωτότοκος¶

Form: ἵνα + γένηται (V-2ADS-3S, aorist middle subjunctive of γίνομαι) = purpose/result clause; πρωτεύων (V-PAP-NSM, present active participle of πρωτεύω, NT hapax) is a present participle in predicate-nominative position with γένηται ("that he might come-to-be holding-first-place"). ἐν πᾶσιν is the scope ("in all things / in all respects"). αὐτὸς repeats the emphatic pronoun.
Significance:
The hymn defines its own terms: the ἵνα-clause makes prōteuōn (to-hold-first-place, to-be-preeminent) the purpose and therefore the meaning of prōtotokos ek tōn nekrōn. Paul's own gloss is decisive for the v.15 prōtotokos controversy: prōtotokos = prōteuōn, not prōtoktistos.
The present participle πρωτεύων (durative aspect, stative-ingressive) combined with the aorist subjunctive γένηται ("come to be… holding-first-place") expresses entry into a permanent state: having become the one who is now (and ongoing) pre-eminent. The resurrection is the vector by which this preeminence is publicly established in history over everything — creation and new-creation.
ἐν πᾶσιν is deliberately ambiguous in gender (neuter "in all things" or masculine "among all [persons]") — the hymn uses the ambiguity to claim preeminence across both domains it has been describing (cosmic τὰ πάντα of vv.16–17 and ecclesial ἡ κεφαλή … τῆς ἐκκλησίας of v.18).

7. εὐδόκησεν πᾶν τὸ πλήρωμα κατοικῆσαι (v.19) — impersonal or personal subject?¶

Form: εὐδόκησεν (V-AAI-3S, aorist active indicative of εὐδοκέω) is ambiguous in subject: grammatically, the singular verb can agree with πᾶν τὸ πλήρωμα (neuter singular subject: "all the fullness was-pleased to dwell") or with an implied [ὁ πατήρ / ὁ θεός] supplied from context (so KJV "it pleased the Father"). κατοικῆσαι is the aorist active infinitive of κατοικέω, functioning as the complement of εὐδοκέω (Wallace 598–599).
Significance:
The more natural reading takes πᾶν τὸ πλήρωμα as the subject — "in him all the fullness was pleased to take-up-residence" — since εὐδοκέω regularly takes personal-volitional subjects, and πλήρωμα here is the divine fullness (expanded at 2:9 πᾶν τὸ πλήρωμα τῆς θεότητος, "all the fullness of deity"). Volitional eudokēsen then speaks of deity willingly residing in Christ — not as adoption but as proper presence.
The infinitive κατοικῆσαι (aorist, not present κατοικεῖν) treats the indwelling as a single settled act: "to take up residence" rather than "to go on dwelling." The compound prefix κατα- intensifies: kat-oikeō = reside permanently/down, as opposed to bare οἰκέω / the weaker παροικέω (sojourn). Same κατοικέω is used at 2:9.
The ὅτι introducing v.19 parallels v.16's ὅτι: both ground statements about Christ (πρωτότοκος, κεφαλή/ἀρχή) in a deeper ὅτι-clause about the fullness of God in him. The structure repeats: title → ὅτι-ground.

8. εἰρηνοποιήσας διὰ τοῦ αἵματος τοῦ σταυροῦ (v.20) — aorist participle of attendant/means¶

Form: εἰρηνοποιήσας is V-AAP-NSM, aorist active participle nominative singular masculine of εἰρηνοποιέω (NT hapax; LXX once). It is anarthrous and nominative, agreeing with the (implicit) subject of εὐδόκησεν in v.19 — ambiguous between God/Father and Christ in line with v.19's ambiguity. The aorist participle with an aorist main verb (or an aorist infinitive ἀποκαταλλάξαι) standardly expresses antecedent/coincident attendant-circumstance or means (Wallace 614–615, 622–630).
Significance:
If the participle is means: "reconciled all things to himself by making peace through the blood of his cross." The two prepositional phrases stack — reconciliation is through (διά) him and peace-making is through (διά) the blood of his cross. The blood is the mechanism; peace-making is the resulting action; reconciliation is the outcome.
The compound ἀποκαταλλάσσω (ἀπό + κατά + ἀλλάσσω) is a double-prefixed intensive — reconcile thoroughly back. The ἀπό-prefix adds the nuance of restored original state, not merely neutralized hostility.
The object τὰ πάντα of ἀποκαταλλάξαι deliberately matches the τὰ πάντα of v.16 and v.17. Creation and reconciliation have the same scope: Christ is the mediator eis auton of both the made-cosmos (v.16) and the remade-cosmos (v.20). The hymn's two stanzas are bound by this τὰ πάντα inclusio.
εἰς αὐτὸν ("to himself" or "to him") mirrors v.16 εἰς αὐτόν; the same telic preposition governs both ends of the arc.
Grammar reference: gap flagged for canonical aorist-participle-means entry.

Structural / Clause Analysis¶

Hymnic architecture — two parallel stanzas bound by inclusio¶

STANZA 1 — CREATION                          STANZA 2 — NEW CREATION
---------------------                        ----------------------
v.15a  ὅς ἐστιν εἰκὼν                        v.18a  καὶ αὐτός ἐστιν ἡ κεφαλὴ
       τοῦ θεοῦ τοῦ ἀοράτου                         τοῦ σώματος, τῆς ἐκκλησίας
v.15b  πρωτότοκος πάσης κτίσεως              v.18b  ὅς ἐστιν ἀρχή,
                                                    πρωτότοκος ἐκ τῶν νεκρῶν
                                                    ἵνα γένηται ἐν πᾶσιν αὐτὸς πρωτεύων
v.16   ὅτι ἐν αὐτῷ ἐκτίσθη τὰ πάντα          v.19   ὅτι ἐν αὐτῷ εὐδόκησεν
         … δι' αὐτοῦ καὶ εἰς αὐτὸν                    πᾶν τὸ πλήρωμα κατοικῆσαι
         ἔκτισται                            v.20     καὶ δι' αὐτοῦ ἀποκαταλλάξαι
                                                    τὰ πάντα εἰς αὐτόν
v.17   αὐτός ἐστιν πρὸ πάντων                        εἰρηνοποιήσας … δι' αὐτοῦ
         τὰ πάντα ἐν αὐτῷ συνέστηκεν

Exact structural features that mark the parallel:

Twin opening αὐτός ἐστιν … / ὅς ἐστιν … declarations in each stanza (vv. 15, 17 // 18a, 18b).
Twin πρωτότοκος titles: πρωτότοκος πάσης κτίσεως (v.15) // πρωτότοκος ἐκ τῶν νεκρῶν (v.18). The repetition is a structural hinge that unifies creation and resurrection under one Christological title.
Twin ὅτι-clauses (v.16 // v.19) grounding the titles.
Twin τὰ πάντα + εἰς αὐτόν target-objects (v.16 // v.20) — creation and reconciliation share a scope.
Triple διά/ἐν/εἰς formula repeated in both stanzas (vv. 16–17 // vv. 19–20).

Concord: neuter plural τὰ πάντα + singular verb¶

Three times (ἐκτίσθη, ἔκτισται, συνέστηκεν) a neuter plural subject τὰ πάντα takes a singular verb — the default Attic concord rule (BDF §133; Smyth §958) where neuter plurals regularly take singular verbs, treating the plurality as a collective unity ("the all-things"). Paul preserves classical concord here, which reinforces the hymnic / elevated register.

Cross-References¶

Grammar library:
divine-passive — ἐκτίσθη, ἔκτισται (aorist/perfect passives with implied divine agent)
aorist-passive-indicative — ἐκτίσθη
participle-perfect-passive-state — stative-perfect principle underlying ἔκτισται and συνέστηκεν
genitive-of-quality-apposition — τοῦ θεοῦ τοῦ ἀοράτου attributive frame
Gaps flagged: canonical entries for genitive-of-subordination (πρωτότοκος πάσης κτίσεως), emphatic-nominative-pronoun (αὐτός ἐστιν), timeless-present (ἐστιν πρὸ πάντων), stative-perfect-active (συνέστηκεν), aorist-participle-means (εἰρηνοποιήσας).
Word studies:
G1504-eikon — εἰκὼν of the invisible God
Gaps flagged: canonical entries for G4416-prōtotokos, G2936-ktizō / G2937-ktisis, G4921-synistēmi, G4138-plērōma, G604-apokatallassō, G4409-prōteuō (hapax).
Related passages in the library:
heb-6-13-18 — another oath/grounding structure
John 1:1–3, Rom 11:36, 1 Cor 8:6, Heb 1:2–3 — parallel creation-mediation Christology (flagged for future passage entries)