2 Thessalonians 2:3-7

ISV(i) 3 Do not let anyone deceive you in any way, for it will not come unless the rebellion takes place first and the man of sin, who is destined for destruction, is revealed. 4 He opposes and exalts himself above every so-called god and object of worship. As a result, he seats himself in the sanctuary of God and himself declares that he is God.
5 Don’t you remember that I repeatedly told you about these things when I was still with you? 6 You know what it is that is now holding him back, so that he will be revealed when his time comes. 7 For the secret of this lawlessness is already at work, but only until the person now holding it back gets out of the way.