Mark 9:7 καὶ ἐγένετο νεφέλη ἐπισκιάζουσα αὐτοῖς καὶ ἐγένετο φωνὴ ἐκ τῆς νεφέλης· οὗτός ἐστιν ὁ υἱός μου ὁ ἀγαπητός, ἀκούετε αὐτοῦ.
A cloud came, overshadowing them, and a voice came out of the cloud, "This is my beloved Son. Listen to him."
Noun: Nominative Singular Feminine

Luke 9:34 ταῦτα δὲ αὐτοῦ λέγοντος ἐγένετο νεφέλη καὶ ἐπεσκίαζεν αὐτούς· ἐφοβήθησαν δὲ ἐν τῷ εἰσελθεῖν αὐτοὺς εἰς τὴν νεφέλην.
While he said these things, a cloud came and overshadowed them, and they were afraid as they entered into the cloud.
Noun: Nominative Singular Feminine

Luke 21:27 καὶ τότε ὄψονται τὸν υἱὸν τοῦ ἀνθρώπου ἐρχόμενον ἐν νεφέλῃ μετὰ δυνάμεως καὶ δόξης πολλῆς.
Then they will see the Son of Man coming in a cloud with power and great glory.
Noun: Dative Singular Feminine

Acts 1:9 καὶ ταῦτα εἰπὼν βλεπόντων αὐτῶν ἐπήρθη καὶ νεφέλη ὑπέλαβεν αὐτὸν ἀπὸ τῶν ὀφθαλμῶν αὐτῶν.
When he had said these things, as they were looking, he was taken up, and a cloud received him out of their sight.
Noun: Nominative Singular Feminine

1 Corinthians 10:2 καὶ πάντες εἰς τὸν Μωϋσῆν ἐβαπτίσαντο / ἐβαπτίσθησαν ἐν τῇ νεφέλῃ καὶ ἐν τῇ θαλάσσῃ
and were all baptized into Moses in the cloud and in the sea;
Noun: Dative Singular Feminine

Revelation 11:12 καὶ ἤκουσαν φωνῆς μεγάλης ἐκ τοῦ οὐρανοῦ λεγούσης αὐτοῖς, ἀνάβατε ὧδε καὶ ἀνέβησαν εἰς τὸν οὐρανὸν ἐν τῇ νεφέλῃ καὶ ἐθεώρησαν αὐτοὺς οἱ ἐχθροὶ αὐτῶν.
I heard a loud voice from heaven saying to them, "Come up here!" They went up into heaven in the cloud, and their enemies saw them.
Noun: Dative Singular Feminine

Revelation 14:14 Καὶ εἶδον, καὶ ἰδοὺ νεφέλη λευκή, καὶ ἐπὶ τὴν νεφέλην καθήμενον ὅμοιον υἱὸν ἀνθρώπου ἔχων ἐπὶ τῆς κεφαλῆς αὐτοῦ στέφανον χρυσοῦν καὶ ἐν τῇ χειρὶ αὐτοῦ δρέπανον ὀξύ.
I looked, and behold, a white cloud; and on the cloud one sitting like a son of man, having on his head a golden crown, and in his hand a sharp sickle.
Noun: Nominative Singular Feminine