ὅτι ἦτε ἐν τῷ καιρῷ ἐκείνῳ χωρὶς Χριστοῦ ἀπηλλοτριωμένοι τῆς πολιτείας
τοῦ Ἰσραὴλ καὶ ξένοι τῶν διαθηκῶν τῆς ἐπαγγελίας ἐλπίδα μὴ ἔχοντες καὶ
ἄθεοι ἐν τῷ κόσμῳ

(Eph. 2:12 TR)

Paul makes a statement that “once” the Gentiles, apart from Christ, have no “citizenship” in Israel, and are “strangers from the covenants of promise”-the benefits of citizenship.

Furthermore, in vs 19, he says,

“ἄρα οὖν οὐκέτι ἐστὲ ξένοι καὶ πάροικοι ἀλλὰ συμπολῖται τῶν ἁγίων καὶ
οἰκεῖοι τοῦ θεοῦ” implying, that such rights of citizenship are given in Christ.

Is this an accurate rendering of πολιτείας? Or is Paul simply making a rhetorical comparison, which the syntax allows him to do?

,

In Eph. 1:10, the Greek text according to the Textus Receptus states,

^Ιʹ εἰς οἰκονομίαν τοῦ πληρώματος τῶν καιρῶν ἀνακεφαλαιώσασθαι τὰ πάντα ἐν τῷ Χριστῷ τὰ τε ἐν τοῖς οὐρανοῖς καὶ τὰ ἐπὶ τῆς γῆς _{TR, 1550}

According to my understanding, the idea is that everything in heaven and upon earth is recapitulated (from the lemma ἀνακεφαλαιῶ), that is, brought under a single head, “in Christ.” Although it has a few meanings, I understand “in Christ” here to mean, “by being a Christian and being incorporated into the body of Christ.” That being said, I can understand what “everything that/everyone who is upon the earth” («τὰ πάντα…τὰ ἐπὶ τῆς γῆς») refers to, which would be Christians alive on earth (i.e., the Church militant).

However, to what or whom does the phrase “everything that/everyone who is in heaven” («τὰ πάντα…τὰ…ἐν τοῖς οὐρανοῖς») refer? Do the other verses in the epistle shed any light on its meaning or referent?