2 Thessalonians 2:4, 8

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.

Then the “outlaw” will be openly revealed, and the Lord will overthrow him by the breath of his mouth and bring him to an end by the dazzling manifestation of his presence.