For the mystery of iniquity is already at work. And only one now holds back, and will continue to hold back, until he is taken from our midst
Other versions
King James Version
For the mystery of iniquity doth already work: only he who now letteth will let, until he be taken out of the way.English Standard Version
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.New International Version
For the secret power of lawlessness is already at work; but the one who now holds it back will continue to do so till he is taken out of the way.