1Now I would remind you, brothers,,1Corinthians 15:31,1Corinthians 15:50,1Corinthians 15:58of the gospel[g]I preached to you, which you received,[h]in which you stand,2and by which[i]you are being saved, if you[j]hold fast to the word I preached to you—[k]unless you believed in vain.3For[l]I delivered to you as of first importance what I also received: that Christ died[m]for our sins[n]in accordance with the Scriptures,4that he was buried, that he was raised[o]on the third day[p]in accordance with the Scriptures,5and that[q]he appeared to Cephas, then[r]to the twelve.6Then he appeared to more than five hundred brothers at one time, most of whom are still alive, though some have fallen asleep.7Then he appeared to[s]James, then[t]to all the apostles.8Last of all, as to one untimely born,[u]he appeared also to me.9For[v]I am the least of the apostles, unworthy to be called an apostle, because[w]I persecuted the church of God.10But by the grace of God I am what I am, and his grace toward me was not in vain. On the contrary,[x]I worked harder than any of them,[y]though it was not I, but the grace of God that is with me.11Whether then it was I or they, so we preach and so you believed.

1 Corinthians 15:1-11 ESV