2 Thessalonians 2:1-3

Complete Jewish Bible

2 But in connection with the coming of our Lord Yeshua the Messiah and our gathering together to meet him, we ask you, brothers, ² not to be easily shaken in your thinking or anxious because of a spirit or a spoken message or a letter supposedly from us claiming that the Day of the Lord has already come. ³ Don’t let anyone deceive you in any way.

For the Day will not come until after the Apostasy has come and the man who separates himself from Torah has been revealed, the one destined for doom.