2 Corinthians 8:19 οὐ μόνον δὲ, ἀλλὰ καὶ χειροτονηθεὶς ὑπὸ τῶν ἐκκλησιῶν συνέκδημος ἡμῶν ἐν / σὺν τῇ χάριτι ταύτῃ τῇ διακονουμένῃ ὑφ' ἡμῶν πρὸς τὴν [αὐτοῦ] τοῦ κυρίου δόξαν καὶ προθυμίαν ἡμῶν,
Not only so, but who was also appointed by the assemblies to travel with us in this grace, which is served by us to the glory of the Lord himself, and to show our readiness.
Noun: Genitive Plural Feminine

2 Corinthians 8:23 εἴτε ὑπὲρ Τίτου, κοινωνὸς ἐμὸς καὶ εἰς ὑμᾶς συνεργός· εἴτε ἀδελφοὶ ἡμῶν ἀπόστολοι ἐκκλησιῶν, δόξα Χριστοῦ.
As for Titus, he is my partner and fellow worker for you. As for our brothers, they are the apostles of the assemblies, the glory of Christ.
Noun: Genitive Plural Feminine

2 Corinthians 8:24 τὴν οὖν ἔνδειξιν τῆς ἀγάπης ὑμῶν καὶ ἡμῶν καυχήσεως ὑπὲρ ὑμῶν εἰς αὐτοὺς ἐνδείξασθε / ἐνδεικνύμενοι εἰς πρόσωπον τῶν ἐκκλησιῶν.
Therefore show the proof of your love to them in front of the assemblies, and of our boasting on your behalf.
Noun: Genitive Plural Feminine

2 Corinthians 11:28 χωρὶς τῶν παρεκτὸς ἡ ἐπίστασίς μοι ἡ καθ' ἡμέραν, ἡ μέριμνα πασῶν τῶν ἐκκλησιῶν.
Besides those things that are outside, there is that which presses on me daily, anxiety for all the assemblies.
Noun: Genitive Plural Feminine

1 Thessalonians 2:14 ὑμεῖς γὰρ μιμηταὶ ἐγενήθητε, ἀδελφοί, τῶν ἐκκλησιῶν τοῦ θεοῦ τῶν οὐσῶν ἐν τῇ Ἰουδαίᾳ ἐν Χριστῷ Ἰησοῦ ὅτι τὰ αὐτὰ ἐπάθετε καὶ ὑμεῖς ὑπὸ τῶν ἰδίων συμφυλετῶν καθὼς καὶ αὐτοὶ ὑπὸ τῶν Ἰουδαίων,
For you, brothers, became imitators of the assemblies of God which are in Judea in Christ Jesus; for you also suffered the same things from your own countrymen, even as they did from the Jews;
Noun: Genitive Plural Feminine

Revelation 1:20 τὸ μυστήριον τῶν ἑπτὰ ἀστέρων οὓς εἶδες ἐπὶ τῆς δεξιᾶς μου καὶ τὰς ἑπτὰ λυχνίας τὰς χρυσᾶς· οἱ ἑπτὰ ἀστέρες ἄγγελοι τῶν ἑπτὰ ἐκκλησιῶν εἰσιν καὶ αἱ λυχνίαι αἱ ἑπτὰ ἑπτὰ ἐκκλησίαι εἰσίν.
the mystery of the seven stars which you saw in my right hand, and the seven golden lampstands. The seven stars are the angels of the seven assemblies. The seven lampstands are seven assemblies.
Noun: Genitive Plural Feminine