2 Thessalonians 2:6

And now you know what is restraining, that he may be revealed in his own time.

Surrounding context

2:5 Do you not remember that when I was still with you I told you these things?

2:6 And now you know what is restraining, that he may be revealed in his own time.

2:7 For the mystery of lawlessness is already at work; only He who now restrains will do so until He is taken out of the way.

Translation and sources