Matthew 24:40

Then will two men be in the open country: one will be taken away, and one left behind.

Matthew 24:50-51

the master of that servant will arrive on a day when he is not expecting him and at an hour of which he has not been informed;

1 Thessalonians 5:2-3

For you yourselves know perfectly well that the day of the Lord comes like a thief in the night.

Treasury of Scripture Knowledge

Summary

But God shall shoot at them with an arrow; suddenly shall they be wounded.

Bible References

Suddenly

Matthew 24:40
Then will two men be in the open country: one will be taken away, and one left behind.
1 Thessalonians 5:2
For you yourselves know perfectly well that the day of the Lord comes like a thief in the night.