There Is No Other Gospel

I am astonished that you are so quickly deserting the one who called you in the grace of Christ and are turning to a different gospel—

not that there is another gospel, but there are some who are confusing you and want to pervert the gospel of Christ.

But even if we or an angel from heaven should proclaim to you a gospel contrary to what we proclaimed to you, let that one be accursed!

As we have said before, so now I repeat, if anyone proclaims to you a gospel contrary to what you received, let that one be accursed!

Paul’s Vindication of His Apostleship

For I want you to know, brothers and sisters, that the gospel that was proclaimed by me is not of human origin,

I went up in response to a revelation. Then I laid before them (though only in a private meeting with the acknowledged leaders) the gospel that I proclaim among the gentiles, in order to make sure that I was not running, or had not run, in vain.

we did not submit to them even for a moment, so that the truth of the gospel might always remain with you.

On the contrary, when they saw that I had been entrusted with the gospel for the uncircumcised, just as Peter had been entrusted with the gospel for the circumcised

But when I saw that they were not acting consistently with the truth of the gospel, I said to Cephas before them all, “If you, though a Jew, live like a gentile and not like a Jew, how can you compel the gentiles to live like Jews?”

And the scripture, foreseeing that God would reckon as righteous the gentiles by faith, declared the gospel beforehand to Abraham, saying, “All the gentiles shall be blessed in you.”

You know that it was because of a physical infirmity that I first announced the gospel to you;