2 Thessalonians 2:2; 2 Thessalonians 2:4; 2 Thessalonians 3:15

2 That ye be not soon shaken in mind, or be troubled , neither by spirit, nor by word, nor by letter as from us, as that the day of Christ is at hand .
4 Who opposeth and exalteth himself above all that is called God, or that is worshipped; so that he as God sitteth in the temple of God, shewing himself that he is God.
15 Yet count him not as an enemy, but admonish him as a brother.