Hebrews 8:8 μεμφόμενος γὰρ αὐτοὺς λέγει, ἰδοὺ ἡμέραι ἔρχονται λέγει κύριος, καὶ συντελέσω ἐπὶ τὸν οἶκον Ἰσραὴλ καὶ ἐπὶ τὸν οἶκον Ἰούδα διαθήκην καινήν,
For finding fault with them, he said, "Behold, the days come," says the Lord, "that I will make a new covenant with the house of Israel and with the house of Judah;
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

2 Peter 3:13 καινοὺς δὲ οὐρανοὺς καὶ γῆν καινὴν κατὰ τὸ ἐπάγγελμα αὐτοῦ προσδοκῶμεν, ἐν οἷς δικαιοσύνη κατοικεῖ.
But, according to his promise, we look for new heavens and a new earth, in which righteousness dwells.
Adjective: Accusative Singular Feminine

1 John 2:7 ἀγαπητοί, οὐκ ἐντολὴν καινὴν γράφω ὑμῖν ἀλλ' ἐντολὴν παλαιὰν ἣν εἴχετε ἀπ' ἀρχῆς· ἡ ἐντολὴ ἡ παλαιά ἐστιν ὁ λόγος ὃν ἠκούσατε.
Brothers, I write no new commandment to you, but an old commandment which you had from the beginning. The old commandment is the word which you heard from the beginning.
Adjective: Accusative Singular Feminine

1 John 2:8 πάλιν ἐντολὴν καινὴν γράφω ὑμῖν ὅ ἐστιν ἀληθὲς ἐν αὐτῷ καὶ ἐν ὑμῖν, ὅτι ἡ σκοτία παράγεται καὶ τὸ φῶς τὸ ἀληθινὸν ἤδη φαίνει.
Again, I write a new commandment to you, which is true in him and in you; because the darkness is passing away, and the true light already shines.
Adjective: Accusative Singular Feminine

2 John 1:5 καὶ νῦν ἐρωτῶ σε, κυρία, οὐχ ὡς ἐντολὴν [καινὴν] γράφων σοι (καινὴν) ἀλλὰ ἣν εἴχομεν ἀπ' ἀρχῆς, ἵνα ἀγαπῶμεν ἀλλήλους.
Now I beg you, dear lady, not as though I wrote to you a new commandment, but that which we had from the beginning, that we love one another.
Adjective: Accusative Singular Feminine

Revelation 5:9 καὶ ᾄδουσιν ᾠδὴν καινὴν λέγοντες, ἄξιος εἶ λαβεῖν τὸ βιβλίον καὶ ἀνοῖξαι τὰς σφραγῖδας αὐτοῦ, ὅτι ἐσφάγης καὶ ἠγόρασας τῷ θεῷ ἐν τῷ αἵματί σου ἐκ πάσης φυλῆς καὶ γλώσσης καὶ λαοῦ καὶ ἔθνους
They sang a new song, saying, "You are worthy to take the book, and to open its seals: for you were killed, and bought us for God with your blood, out of every tribe, language, people, and nation,
Adjective: Accusative Singular Feminine

Revelation 14:3 καὶ ᾄδουσιν ὡς ᾠδὴν καινὴν ἐνώπιον τοῦ θρόνου καὶ ἐνώπιον τῶν τεσσάρων ζῴων καὶ τῶν πρεσβυτέρων, καὶ οὐδεὶς ἐδύνατο μαθεῖν τὴν ᾠδὴν εἰ μὴ αἱ ἑκατὸν τεσσεράκοντα τέσσαρες χιλιάδες οἱ ἠγορασμένοι ἀπὸ τῆς γῆς.
They sing a new song before the throne, and before the four living creatures and the elders. No one could learn the song except the one hundred forty-four thousand, those who had been redeemed out of the earth.
Adjective: Accusative Singular Feminine

Revelation 21:1 Καὶ εἶδον οὐρανὸν καινὸν καὶ γῆν καινήν. ὁ γὰρ πρῶτος οὐρανὸς καὶ ἡ πρώτη γῆ ἀπῆλθαν καὶ ἡ θάλασσα οὐκ ἔστιν ἔτι.
I saw a new heaven and a new earth: for the first heaven and the first earth have passed away, and the sea is no more.
Adjective: Accusative Singular Feminine

Revelation 21:2 καὶ τὴν πόλιν τὴν ἁγίαν Ἰερουσαλὴμ καινὴν εἶδον καταβαίνουσαν ἐκ τοῦ οὐρανοῦ ἀπὸ τοῦ θεοῦ ἡτοιμασμένην ὡς νύμφην κεκοσμημένην τῷ ἀνδρὶ αὐτῆς.
I saw the holy city, New Jerusalem, coming down out of heaven from God, prepared like a bride adorned for her husband.
Adjective: Accusative Singular Feminine