2 Thessalonians 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.

Revelation 17:5

and on her forehead a name was written, a mystery, “BABYLON THE GREAT, THE MOTHER OF HARLOTS AND OF THE ABOMINATIONS OF THE EARTH.”

Revelation 17:7

And the angel said to me, “Why do you wonder? I will tell you the mystery of the woman and of the beast that carries her, which has the seven heads and the ten horns.

1 John 2:18

Children, it is the last hour; and just as you heard that antichrist is coming, even now many antichrists have appeared; from this we know that it is the last hour.

1 John 4:3

and every spirit that does not confess Jesus is not from God; this is the spirit of the antichrist, of which you have heard that it is coming, and now it is already in the world.

Acts 20:29

I know that after my departure savage wolves will come in among you, not sparing the flock;

Colossians 2:18-23

Let no one keep defrauding you of your prize by delighting in self-abasement and the worship of the angels, taking his stand on visions he has seen, inflated without cause by his fleshly mind,

1 Timothy 3:16

By common confession, great is the mystery of godliness:
He who was revealed in the flesh,
Was vindicated in the Spirit,
Seen by angels,
Proclaimed among the nations,
Believed on in the world,
Taken up in glory.

2 Timothy 2:17-18

and their talk will spread like gangrene. Among them are Hymenaeus 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
By common confession, great is the mystery of godliness:
He who was revealed in the flesh,
Was vindicated in the Spirit,
Seen by angels,
Proclaimed among the nations,
Believed on in the world,
Taken up in glory.
Revelation 17:5
and on her forehead a name was written, a mystery, “BABYLON THE GREAT, THE MOTHER OF HARLOTS AND OF THE ABOMINATIONS OF THE EARTH.”

Doth

Acts 20:29
I know that after my departure savage wolves will come in among you, not sparing the flock;
Colossians 2:18
Let no one keep defrauding you of your prize by delighting in self-abasement and the worship of the angels, taking his stand on visions he has seen, inflated without cause by his fleshly mind,
2 Timothy 2:17
and their talk will spread like gangrene. Among them are Hymenaeus and Philetus,
1 John 2:18
Children, it is the last hour; and just as you heard that antichrist is coming, even now many antichrists have appeared; from this we know that it is the last hour.
1 John 4:3
and every spirit that does not confess Jesus is not from God; this is the spirit of the antichrist, of which you have heard that it is coming, and now it is already in the world.

He who

2 Thessalonians 2:6
And you know what restrains him now, so that in his time he will be revealed.