1 Corinthians 15:1-6

¹ Now I would remind you, brothers, of the gospel I preached to you, which you received, in which you stand, ² and by which you are being saved, if you hold fast to the word I preached to you—unless you believed in vain.

³ For I delivered to you as of first importance what I also received: that Christ died for our sins in accordance with the Scriptures, ⁴ that he was buried, that he was raised on the third day in accordance with the Scriptures, ⁵ and that he appeared to Cephas, then to the twelve. ⁶ Then he appeared to more than five hundred brothers at one time, most of whom are still alive, though some have fallen asleep.