The Warning of St. Paul the Apostle...

"But I am afraid that as the serpent deceived Eve by his cunning, your thoughts will be led astray from a sincere and pure devotion to Christ. For if some one comes and preaches another Jesus than the one we preached, or if you receive a different spirit from the one you received, or if you accept a different gospel from the one you accepted, you submit to it readily enough."
- 2 Corinthians 11:3-4

"I am astonished that you are so quickly deserting him who called you in the grace of Christ and turning to a different gospel— not that there is another gospel, but there are some who trouble you and want to pervert the gospel of Christ. But even if we, or an angel from heaven, should preach to you a gospel contrary to that which we preached to you, let him be accursed. As we have said before, so now I say again, If any one is preaching to you a gospel contrary to that which you received, let him be accursed."
- Galatians 1:6-9

Painting: The Apostle Paul c. 1657, oil on canvas by Rembrandt van Rijn (1606-1669)