2 Thessalonians 2:7

For the mystery of iniquity is already powerfully working; only he that withholdeth hitherto, will do so till he is removed.

Revelation 17:5

And upon her forehead was there a name written, Mystery, Babylon the great, the mother or harlots, and of the abominations of the earth.

Revelation 17:7

And the angel said unto me, Wherefore dost thou wonder? I will tell thee the mystery of the woman, and of the beast which carrieth her, which hath seven heads and ten horns.

1 John 2:18

My dear children, it is the last hour; and as ye have heard that antichrist is coming, even now there are many antichrists: by which we know it is the last hour.

1 John 4:3

And every spirit who confesseth not that Jesus the Messiah is come into the world, is not from God: and this is that spirit of antichrist which ye have heard that it is coming, and now is already in the world.

Acts 20:29

For this I know, that after my departure there will come among you grievous wolves, not sparing the flock:

Colossians 2:18-23

Let no man juggle you out of your prize, voluntary in [his] humility and the worship of angels, intruding into things which he never saw, vainly puffed up by his carnal imagination;

1 Timothy 3:16

And confessedly great is the mystery of godliness: God was manifested in the flesh, justified by the Spirit, seen of angels, preached among the Gentiles, believed on in the world, received up into glory.

2 Timothy 2:17-18

And their discourse will eat like as a gangrene; of whom are Hymeneus and Philetus;

Treasury of Scripture Knowledge

Summary

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

Bible References

The mystery

1 Timothy 3:16
And confessedly great is the mystery of godliness: God was manifested in the flesh, justified by the Spirit, seen of angels, preached among the Gentiles, believed on in the world, received up into glory.
Revelation 17:5
And upon her forehead was there a name written, Mystery, Babylon the great, the mother or harlots, and of the abominations of the earth.

Doth

Acts 20:29
For this I know, that after my departure there will come among you grievous wolves, not sparing the flock:
Colossians 2:18
Let no man juggle you out of your prize, voluntary in [his] humility and the worship of angels, intruding into things which he never saw, vainly puffed up by his carnal imagination;
2 Timothy 2:17
And their discourse will eat like as a gangrene; of whom are Hymeneus and Philetus;
1 John 2:18
My dear children, it is the last hour; and as ye have heard that antichrist is coming, even now there are many antichrists: by which we know it is the last hour.
1 John 4:3
And every spirit who confesseth not that Jesus the Messiah is come into the world, is not from God: and this is that spirit of antichrist which ye have heard that it is coming, and now is already in the world.

He who

2 Thessalonians 2:6
And now ye know what withholdeth, that he may be revealed in his own time.