Galatians 1:8
But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed.
Galatians 1:9
As we said before, so say I now again, if any man preach any other gospel unto you than that ye have received, let him be accursed.
Galatians 2:2
And I went up by revelation, and communicated unto them that gospel which I preach among the Gentiles, but privately to them which were of reputation, lest by any means I should run, or had run, in vain.
Galatians 6:15
For in Christ Jesus neither circumcision availeth any thing, nor uncircumcision, but a new creature.