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 2:7

2:7 On the contrary, when they saw that I was entrusted with the gospel to the uncircumcised just as Peter was to the circumcised

Galatians 3:2

3:2 The only thing I want to learn from you is this: Did you receive the Spirit by doing the works of the law or by believing what you heard?

Galatians 3:23-24

Sons of God Are Heirs of Promise

3:23 Now before faith came we were held in custody under the law, being kept as prisoners until the coming faith would be revealed. 3:24 Thus the law had become our guardian until Christ, so that we could be declared righteous by faith.

Galatians 6:8

6:8 because the person who sows to his own flesh will reap corruption from the flesh, but the one who sows to the Spirit will reap eternal life from the Spirit.