Acts 12:10 διελθόντες δὲ πρώτην φυλακὴν καὶ δευτέραν ἦλθαν ἐπὶ τὴν πύλην τὴν σιδηρᾶν τὴν φέρουσαν εἰς τὴν πόλιν, ἥτις αὐτομάτη ἠνοίγη αὐτοῖς καὶ ἐξελθόντες προῆλθον ῥύμην μίαν, καὶ εὐθέως ἀπέστη ὁ ἄγγελος ἀπ' αὐτοῦ.
When they were past the first and the second guard, they came to the iron gate that leads into the city, which opened to them by itself. They went out, and went down one street, and immediately the angel departed from him.
Adjective: Accusative Singular Feminine

1 Timothy 5:12 ἔχουσαι κρίμα ὅτι τὴν πρώτην πίστιν ἠθέτησαν·
having condemnation, because they have rejected their first pledge.
Adjective: Accusative Singular Feminine

Hebrews 8:13 ἐν τῷ λέγειν καινὴν πεπαλαίωκεν τὴν πρώτην· τὸ δὲ παλαιούμενον καὶ γηράσκον ἐγγὺς ἀφανισμοῦ.
In that he says, "A new covenant," he has made the first old. But that which is becoming old and grows aged is near to vanishing away.
Adjective: Accusative Singular Feminine

Hebrews 9:6 Τούτων δὲ οὕτως κατεσκευασμένων εἰς μὲν τὴν πρώτην σκηνὴν διὰ παντὸς εἰσίασιν οἱ ἱερεῖς τὰς λατρείας ἐπιτελοῦντες,
Now these things having been thus prepared, the priests go in continually into the first tabernacle, accomplishing the services,
Adjective: Accusative Singular Feminine

Revelation 2:4 ἀλλὰ ἔχω κατὰ σοῦ ὅτι τὴν ἀγάπην σου τὴν πρώτην ἀφῆκες.
But I have this against you, that you left your first love.
Adjective: Accusative Singular Feminine