2 Thessalonians 2:5 Meaning

3Let 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;

4Who 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.

5Remember ye not, that, when I was yet with you, I told you these things?

6And now ye know what withholdeth that he might be revealed in his time.

7For the mystery of iniquity doth already work: only he who now letteth will let, until he be taken out of the way.