2 Thessalonians 2:4

he that opposeth and exalteth himself against all that is called God or that is worshipped; so that he sitteth in the temple of God, setting himself forth as God. [The antichrist will be antagonistic to God, and will exalt himself as a rival to everything that is worshiped, whether it be king or emperor, mythical god or true God, even entering, not only into the outer courts of the temple, but penetrating to the inner sanctuary, and taking his seat where God alone has a right to rest, and there making an arrogant display of himself as an object of worship (comp. Acts 12:21-23). The Greek word for "worship" is sebasma: from it came Sebastus or Augustus (i. e., the Worshipful), which was the title of the Roman emperors. A man of that age could hardly see this word in such a connection without thinking that Paul meant to convey the idea that the antichrist would arrogate to himself all the reverence then claimed by the great civil lords of the earth, such as emperors, kings, etc. The temple is Paul's favorite metaphor for the church-- 1 Corinthians 3:16-17; 2 Corinthians 6:16; Ephesians 2:21]