Matthew 24:44

Therefore be ye also ready: because the Son of man cometh in an hour at which you do not think.

Luke 21:34

But take heed to yourselves, lest your hearts may be burdened with luxury, and drunkenness, and worldly cares, and that day may come on you unanticipated.

1 Thessalonians 5:3

When they may say, Peace and safety, then sudden destruction comes on them, as travail upon a woman in gestation; and they can not escape.

Treasury of Scripture Knowledge

Summary

And there came against Gibeah ten thousand chosen men out of all Israel, and the battle was sore: but they knew not that evil was near them.

General references

Bible References

Knew not

Matthew 24:44
Therefore be ye also ready: because the Son of man cometh in an hour at which you do not think.
Luke 21:34
But take heed to yourselves, lest your hearts may be burdened with luxury, and drunkenness, and worldly cares, and that day may come on you unanticipated.
1 Thessalonians 5:3
When they may say, Peace and safety, then sudden destruction comes on them, as travail upon a woman in gestation; and they can not escape.

General references

Matthew 24:39
and they did not know until the flood came, and took them all away; so shall be the coming of the Son of man.