2 Timothy 2:19 ὁ μέντοι στερεὸς θεμέλιος τοῦ θεοῦ ἕστηκεν, ἔχων τὴν σφραγῖδα ταύτην ἔγνω κύριος τοὺς ὄντας αὐτοῦ, καί ἀποστήτω ἀπὸ ἀδικίας πᾶς ὁ ὀνομάζων τὸ ὄνομα κυρίου.
However God's firm foundation stands, having this seal, "The Lord knows those who are his," and, "Let every one who names the name of the Lord depart from unrighteousness."
Noun: Accusative Singular Feminine

Revelation 6:3 Καὶ ὅτε ἤνοιξεν τὴν σφραγῖδα τὴν δευτέραν, ἤκουσα τοῦ δευτέρου ζῴου λέγοντος, ἔρχου.
When he opened the second seal, I heard the second living creature saying, "Come!"
Noun: Accusative Singular Feminine

Revelation 6:5 Καὶ ὅτε ἤνοιξεν τὴν σφραγῖδα τὴν τρίτην, ἤκουσα τοῦ τρίτου ζῴου λέγοντος, ἔρχου. καὶ εἶδον καὶ ἰδοὺ ἵππος μέλας, καὶ ὁ καθήμενος ἐπ' αὐτὸν ἔχων ζυγὸν ἐν τῇ χειρὶ αὐτοῦ.
When he opened the third seal, I heard the third living creature saying, "Come and see!" And behold, a black horse, and he who sat on it had a balance in his hand.
Noun: Accusative Singular Feminine

Revelation 6:7 Καὶ ὅτε ἤνοιξεν τὴν σφραγῖδα τὴν τετάρτην, ἤκουσα φωνὴν τοῦ τετάρτου ζῴου λέγοντος, ἔρχου.
When he opened the fourth seal, I heard the fourth living creature saying, "Come and see!"
Noun: Accusative Singular Feminine

Revelation 6:9 Καὶ ὅτε ἤνοιξεν τὴν πέμπτην σφραγῖδα εἶδον ὑποκάτω τοῦ θυσιαστηρίου τὰς ψυχὰς τῶν ἐσφαγμένων διὰ τὸν λόγον τοῦ θεοῦ καὶ διὰ τὴν μαρτυρίαν ἣν εἶχον.
When he opened the fifth seal, I saw underneath the altar the souls of those who had been killed for the Word of God, and for the testimony of the Lamb which they had.
Noun: Accusative Singular Feminine

Revelation 6:12 Καὶ εἶδον ὅτε ἤνοιξεν τὴν σφραγῖδα τὴν ἕκτην, καὶ σεισμὸς μέγας ἐγένετο καὶ ὁ ἥλιος ἐγένετο μέλας ὡς σάκκος τρίχινος καὶ ἡ σελήνη ὅλη ἐγένετο ὡς αἷμα
I saw when he opened the sixth seal, and there was a great earthquake. The sun became black as sackcloth made of hair, and the whole moon became as blood.
Noun: Accusative Singular Feminine

Revelation 7:2 καὶ εἶδον ἄλλον ἄγγελον ἀναβαίνοντα ἀπὸ ἀνατολῆς ἡλίου ἔχοντα σφραγῖδα θεοῦ ζῶντος, καὶ ἔκραξεν φωνῇ μεγάλῃ τοῖς τέσσαρσιν ἀγγέλοις οἷς ἐδόθη αὐτοῖς ἀδικῆσαι τὴν γῆν καὶ τὴν θάλασσαν
I saw another angel ascend from the sunrise, having the seal of the living God. He cried with a loud voice to the four angels to whom it was given to harm the earth and the sea,
Noun: Accusative Singular Feminine

Revelation 8:1 Καὶ ὅταν ἤνοιξεν τὴν σφραγῖδα τὴν ἑβδόμην, ἐγένετο σιγὴ ἐν τῷ οὐρανῷ ὡς ἡμιώριον.
When he opened the seventh seal, there was silence in heaven for about half an hour.
Noun: Accusative Singular Feminine

Revelation 9:4 καὶ ἐρρέθη αὐταῖς ἵνα μὴ ἀδικήσουσιν τὸν χόρτον τῆς γῆς οὐδὲ πᾶν χλωρὸν οὐδὲ πᾶν δένδρον, εἰ μὴ τοὺς ἀνθρώπους οἵτινες οὐκ ἔχουσιν / ἔχουσι τὴν σφραγῖδα τοῦ θεοῦ ἐπὶ τῶν μετώπων.
They were told that they should not hurt the grass of the earth, neither any green thing, neither any tree, but only those people who don't have God's seal on their foreheads.
Noun: Accusative Singular Feminine