Matthew 24:44

Therefore you also must be ready; for it is at a time when you do not expect Him that the Son of Man will come.

Luke 21:34

"But take heed to yourselves, lest your souls be weighed down with self-indulgence and drunkenness or the anxieties of this life, and that day come upon you, suddenly, like a falling trap;

1 Thessalonians 5:3

While they are saying "Peace and safety!" then in a moment destruction falls upon them, like birth-pains on a woman who is with child; and escape there is none.

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 you also must be ready; for it is at a time when you do not expect Him that the Son of Man will come.
Luke 21:34
"But take heed to yourselves, lest your souls be weighed down with self-indulgence and drunkenness or the anxieties of this life, and that day come upon you, suddenly, like a falling trap;
1 Thessalonians 5:3
While they are saying "Peace and safety!" then in a moment destruction falls upon them, like birth-pains on a woman who is with child; and escape there is none.

General references

Matthew 24:39
nor did they realise any danger till the Deluge came and swept them all away; so will it be at the Coming of the Son of Man.