Galatians 1:8-9

1:8 But even if we (or an angel from heaven) should preach a gospel contrary to the one we preached to you, let him be condemned to hell! 1:9 As we have said before, and now I say again, if any one is preaching to you a gospel contrary to what you received, let him be condemned to hell!

Galatians 1:11

Paul’s Vindication of His Apostleship

1:11 Now I want you to know, brothers and sisters, that the gospel I preached is not of human origin.

Galatians 1:18

1:18 Then after three years I went up to Jerusalem to visit Cephas and get information from him, and I stayed with him fifteen days.

Galatians 5:2

5:2 Listen! I, Paul, tell you that if you let yourselves be circumcised, Christ will be of no benefit to you at all!

Galatians 6:9-10

6:9 So we must not grow weary in doing good, for in due time we will reap, if we do not give up. 6:10 So then, whenever we have an opportunity, let us do good to all people, and especially to those who belong to the family of faith.