Galatians 1:1-9 (ESV)  

1 Paul, an apostle—not from men nor through man, but through Jesus Christ and God the Father, who raised him from the dead— 2 and all the brothers who are with me,

To the churches of Galatia:

3 Grace to you and peace from God our Father and the Lord Jesus Christ, 4 who gave himself for our sins to deliver us from the present evil age, according to the will of our God and Father, 5 to whom be the glory forever and ever. Amen.

6 I am astonished that you are so quickly deserting him who called you in the grace of Christ and are turning to a different gospel— 7 not that there is another one, but there are some who trouble you and want to distort the gospel of Christ. 

8 But even if we or an angel from heaven should preach to you a gospel contrary to the one we preached to you, let him be accursed. 9 As we have said before, so now I say again: If anyone is preaching to you a gospel contrary to the one you received, let him be accursed.