Read 2 Thessalonians 2:7 Using Other Translations
For the mystery of iniquity doth already work: only he who now letteth will let, until he be taken out of the way.
For the mystery of lawlessness is already at work. Only he who now restrains it will do so until he is out of the way.
For this lawlessness is already at work secretly, and it will remain secret until the one who is holding it back steps out of the way.