Galatians 1:8-9

No Other Gospel

⁸ But even if we or _q an angel from heaven should preach to you a gospel contrary to the one we preached to you, _r 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, _r let him be accursed.

1. Cross References
   2 Corinthians 11:14
   And no wonder, for even Satan disguises himself as an angel of light.
   
2. Cross References
   Romans 9:3
   For I could wish that I myself were accursed and cut off from Christ for the sake of my brothers, my kinsmen according to the flesh.
   
3. Cross References
   Galatians 1:8
   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.