1 Corinthians 3:22 εἴτε Παῦλος εἴτε Ἀπολλῶς εἴτε Κηφᾶς, εἴτε κόσμος εἴτε ζωὴ εἴτε θάνατος, εἴτε ἐνεστῶτα εἴτε μέλλοντα πάντα ὑμῶν,
whether Paul, or Apollos, or Cephas, or the world, or life, or death, or things present, or things to come. All are yours,
Noun: Nominative Singular Masculine

1 Corinthians 9:5 μὴ οὐκ ἔχομεν ἐξουσίαν ἀδελφὴν γυναῖκα περιάγειν ὡς καὶ οἱ λοιποὶ ἀπόστολοι καὶ οἱ ἀδελφοὶ τοῦ κυρίου καὶ Κηφᾶς;
Have we no right to take along a wife who is a believer, even as the rest of the apostles, and the brothers of the Lord, and Cephas?
Noun: Nominative Singular Masculine

Galatians 2:9 καὶ γνόντες τὴν χάριν τὴν δοθεῖσάν μοι, Ἰάκωβος καὶ Κηφᾶς καὶ Ἰωάννης, οἱ δοκοῦντες στῦλοι εἶναι δεξιὰς ἔδωκαν ἐμοὶ καὶ Βαρναβᾷ κοινωνίας, ἵνα ἡμεῖς εἰς τὰ ἔθνη, αὐτοὶ δὲ εἰς τὴν περιτομήν·
and when they perceived the grace that was given to me, James and Cephas and John, they who were reputed to be pillars, gave to me and Barnabas the right hand of fellowship, that we should go to the Gentiles, and they to the circumcision.
Noun: Nominative Singular Masculine

Galatians 2:11 ὅτε δὲ ἦλθεν Κηφᾶς εἰς Ἀντιόχειαν, κατὰ πρόσωπον αὐτῷ ἀντέστην, ὅτι κατεγνωσμένος ἦν.
But when Peter came to Antioch, I resisted him to his face, because he stood condemned.
Noun: Nominative Singular Masculine