2 Thessalonians 1:10; 2 Thessalonians 2:3

2 Thessalonians 1:10

10 When he shall come to be glorified in his saints, and to be admired in all them that believe (because our testimony among you was believed) in that day.

2 Thessalonians 2:3

3 Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and that man of sin be revealed, the son of perdition;