1 Corinthians 9:17 εἰ γὰρ ἑκὼν τοῦτο πράσσω, μισθὸν ἔχω· εἰ δὲ ἄκων, οἰκονομίαν πεπίστευμαι·
For if I do this of my own will, I have a reward. But if not of my own will, I have a stewardship entrusted to me.
Noun: Accusative Singular Feminine

Ephesians 1:10 εἰς οἰκονομίαν τοῦ πληρώματος τῶν καιρῶν, ἀνακεφαλαιώσασθαι τὰ πάντα ἐν τῷ Χριστῷ τὰ ἐπὶ τοῖς οὐρανοῖς καὶ τὰ ἐπὶ τῆς γῆς
to an administration of the fullness of the times, to sum up all things in Christ, the things in the heavens, and the things on the earth, in him;
Noun: Accusative Singular Feminine

Ephesians 3:2 εἴ γε ἠκούσατε τὴν οἰκονομίαν τῆς χάριτος τοῦ θεοῦ τῆς δοθείσης μοι εἰς ὑμᾶς,
if it is so that you have heard of the administration of that grace of God which was given me toward you;
Noun: Accusative Singular Feminine

Colossians 1:25 ἧς ἐγενόμην ἐγὼ διάκονος κατὰ τὴν οἰκονομίαν τοῦ θεοῦ τὴν δοθεῖσάν μοι εἰς ὑμᾶς πληρῶσαι τὸν λόγον τοῦ θεοῦ,
of which I was made a servant, according to the stewardship of God which was given me toward you, to fulfill the word of God,
Noun: Accusative Singular Feminine

1 Timothy 1:4 μηδὲ προσέχειν μύθοις καὶ γενεαλογίαις ἀπεράντοις, αἵτινες ἐκζητήσεις παρέχουσιν μᾶλλον ἢ οἰκονομίαν θεοῦ τὴν ἐν πίστει.
neither to pay attention to myths and endless genealogies, which cause disputes, rather than God's stewardship, which is in faith--
Noun: Accusative Singular Feminine