Note 9 at 2 Th. 2:4: This "man of sin" attempts to show that he is God. He demonstrates extreme pride and places himself over everything that is an object of worship. The Greek word for "opposeth" is ANTIKEIMAI, and literally means "to lie opposite to, to be set againstto withstand, to be contrary to, to be an opponent and self-exalter against God" (W.E. Vine). In Greek, "opposeth" is in the present tense meaning a continuous process or habit. This is continual opposition to God.

Note 10 at 2 Th. 2:4: Throughout history there have been rulers who have proclaimed themselves a deity and demanded worship. But this "man of sin" will do this in the Jewish temple specifically in defiance of our true God (cp. Dan. 11:36). If this "man of sin" is the beast of Revelation 13, then he would set an image of himself up in the temple to be worshiped, and the false prophet would give life to it and force everyone to worship it.