1 Corinthians 1:17; 1 Corinthians 9:16; 1 Corinthians 9:18; 1 Corinthians 15:1; 1 Corinthians 15:2

1 Corinthians 1:17

17 For Christ sent me not to baptize, but to preach the gospel: not with wisdom of words, lest the cross of Christ should be made of none effect.

1 Corinthians 9:16

16 For though I preach the gospel, I have nothing to glory of: for necessity is laid upon me; yea, woe is unto me, if I preach not the gospel!

1 Corinthians 9:18

18 What is my reward then? Verily that, when I preach the gospel, I may make the gospel of Christ without charge, that I abuse not my power in the gospel.

1 Corinthians 15:1

1 Moreover, brethren, I declare unto you the gospel which I preached unto you, which also ye have received, and wherein ye stand;

1 Corinthians 15:2

2 By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain.