1 Korintus 15:5

Kefas : a nickname for Simon, son of John

Petrus : a man who was a leader among the twelve apostles and wrote the two epistles of Peter

1 Korintus 15:7

Yakobus : a son of Zebedee; brother of John; an apostle,a son of Alpheus; an apostle,a brother of Jesus; writer of the epistle of James,the father (or brother) of the apostle Judas