Ephesians 1:11 ἐν αὐτῷ. ἐν ᾧ καὶ ἐκληρώθημεν προορισθέντες κατὰ πρόθεσιν τοῦ τὰ πάντα ἐνεργοῦντος κατὰ τὴν βουλὴν τοῦ θελήματος αὐτοῦ
in whom also we were assigned an inheritance, having been foreordained according to the purpose of him who works all things after the counsel of his will;
Noun: Accusative Singular Feminine

Ephesians 3:11 κατὰ πρόθεσιν τῶν αἰώνων ἣν ἐποίησεν ἐν τῷ Χριστῷ Ἰησοῦ τῷ κυρίῳ ἡμῶν.
according to the eternal purpose which he purposed in Christ Jesus our Lord;
Noun: Accusative Singular Feminine

2 Timothy 1:9 τοῦ σώσαντος ἡμᾶς καὶ καλέσαντος κλήσει ἁγίᾳ, οὐ κατὰ τὰ ἔργα ἡμῶν ἀλλὰ κατὰ ἰδίαν πρόθεσιν καὶ χάριν, τὴν δοθεῖσαν ἡμῖν ἐν Χριστῷ Ἰησοῦ πρὸ χρόνων αἰωνίων,
who saved us and called us with a holy calling, not according to our works, but according to his own purpose and grace, which was given to us in Christ Jesus before times eternal,
Noun: Accusative Singular Feminine