'Gospel' in the Bible

I am astonished that you are so quickly deserting the one who called you by the grace of Christ and are following a different gospel --

not that there really is another gospel, but there are some who are disturbing you and wanting to distort the gospel of Christ.

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!

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!

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

I went there because of a revelation and presented to them the gospel that I preach among the Gentiles. But I did so only in a private meeting with the influential people, to make sure that I was not running -- or had not run -- in vain.

But we did not surrender to them even for a moment, in order that the truth of the gospel would remain with you.

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

But when I saw that they were not behaving consistently with the truth of the gospel, I said to Cephas in front of them all, "If you, although you are a Jew, live like a Gentile and not like a Jew, how can you try to force the Gentiles to live like Jews?"

And the scripture, foreseeing that God would justify the Gentiles by faith, proclaimed the gospel to Abraham ahead of time, saying, "All the nations will be blessed in you."

But you know it was because of a physical illness that I first proclaimed the gospel to you,