2 Thessalonians 2:1-5

Now, regarding the coming of our Lord Jesus Christ and our gathering together to him, we plead with you, beloved friends, not to be easily confused or disturbed in your minds by any kind of spirit, rumor, or letter allegedly from us, claiming that the day of the Lord has already come. Don’t let anyone deceive you in any way. Before that day comes the rebellion must occur and the “outlaw” —the destructive son—will be revealed in his true light. He is the opposing counterpart who exalts himself over everything that is called “God” or is worshiped and who sits enthroned in God’s temple and makes himself out to be a god. Don’t you remember that when I was with you I went over all these things?