Luke 3:29 τοῦ Ἰησοῦ τοῦ Ἐλιέζερ τοῦ Ἰωρὶμ τοῦ Μαθθὰτ τοῦ Λευὶ
the son of Jose, the son of Eliezer, the son of Jorim, the son of Matthat, the son of Levi,
Noun: Genitive Singular Masculine

Hebrews 7:5 καὶ οἱ μὲν ἐκ τῶν υἱῶν Λευὶ τὴν ἱερατείαν λαμβάνοντες ἐντολὴν ἔχουσιν ἀποδεκατοῦν τὸν λαὸν κατὰ τὸν νόμον, τοῦτ' ἔστιν τοὺς ἀδελφοὺς αὐτῶν, καίπερ ἐξεληλυθότας ἐκ τῆς ὀσφύος Ἀβραάμ·
They indeed of the sons of Levi who receive the priest's office have a commandment to take tithes of the people according to the law, that is, of their brothers, though these have come out of the body of Abraham,
Noun: Genitive Singular Masculine

Hebrews 7:9 καὶ ὡς ἔπος εἰπεῖν δι' Ἀβραὰμ καὶ Λευὶς / Λευὶ ὁ δεκάτας λαμβάνων δεδεκάτωται·
We can say that through Abraham even Levi, who receives tithes, has paid tithes,
Noun: Nominative Singular Masculine

Revelation 7:7 ἐκ φυλῆς Συμεὼν δώδεκα χιλιάδες, ἐκ φυλῆς Λευὶ δώδεκα χιλιάδες, ἐκ φυλῆς Ἰσσαχὰρ δώδεκα χιλιάδες,
of the tribe of Simeon twelve thousand, of the tribe of Levi twelve thousand, of the tribe of Issachar twelve thousand,
Noun: Genitive Singular Masculine