2 Thessalonians 2:6-8

2:6 And so you know what holds him back, so that he will be revealed in his own time. 2:7 For the hidden power of lawlessness is already at work. However, the one who holds him back will do so until he is taken out of the way, 2:8 and then the lawless one will be revealed, whom the Lord will destroy by the breath of his mouth and wipe out by the manifestation of his arrival.