Matthew 24:39

and knew not of it till the deluge came and took them all away; so shall be also the coming of the Son of man.

Matthew 24:50

the lord of that servant will come in a day when he doth not expect him, and in an hour which he knows not,

1 Thessalonians 5:1-3

But of the times and seasons, brethren, ye have no need of my writing to you:

2 Peter 2:3

and by artful speeches they will make sale of you for gain. Whose judgement is long since hastening, and their destruction doth not slumber.

Treasury of Scripture Knowledge

Summary

And it came to pass, when the king of Ai saw it, that they hasted and rose up early, and the men of the city went out against Israel to battle, he and all his people, at a time appointed, before the plain; but he wist not that there were liers in ambush against him behind the city.

Bible References

He wist not

Matthew 24:39
and knew not of it till the deluge came and took them all away; so shall be also the coming of the Son of man.
1 Thessalonians 5:1
But of the times and seasons, brethren, ye have no need of my writing to you:
2 Peter 2:3
and by artful speeches they will make sale of you for gain. Whose judgement is long since hastening, and their destruction doth not slumber.