2 Thessalonians 2:3

2:3 Let no one deceive you in any way. For that day will not arrive until the rebellion comes and the man of lawlessness is revealed, the son of destruction.

2 Thessalonians 2:10-12

2:10 and with every kind of evil deception directed against those who are perishing, because they found no place in their hearts for the truth so as to be saved. 2:11 Consequently God sends on them a deluding influence so that they will believe what is false. 2:12 And so all of them who have not believed the truth but have delighted in evil will be condemned.