In Paul's first letter to the Corinthians, 1 Corinthians, he tells them there are some things that he must pass on to them that are of the utmost importance. What Paul passes on is the heart of the Gospel, ": that Christ died for our sins according to the Scriptures, 4 that he was buried, that he was raised on the third day according to the Scriptures, 5 and that he appeared to Cephas, and then to the Twelve. 6 After that, he appeared to more than five hundred of the brothers and sisters at the same time, most of whom are still living, though some have fallen asleep" (1 Corinthians 15:3b-6; New International Version).