Joshua 8:3

And Joshua arose, and all the people of war, to go up to Ai. And Joshua chose thirty thousand valiant men, and sent them away by night.

Matthew 24:39

and they knew not till the flood came and took all away; thus also shall be the coming of the Son of man.

Matthew 24:50

the lord of that bondman shall come in a day when he does not expect it, and in an hour he knows not of,

Matthew 25:6

But in the middle of the night there was a cry, Behold, the bridegroom; go forth to meet him.

1 Thessalonians 5:2

for ye know perfectly well yourselves, that the day of the Lord so comes as a thief by night.

2 Peter 3:10

But the day of the Lord will come as a thief, in which the heavens will pass away with a rushing noise, and the elements, burning with heat, shall be dissolved, and the earth and the works in it shall be burnt up.

Treasury of Scripture Knowledge

Summary

So Joshua arose, and all the people of war, to go up against Ai: and Joshua chose out thirty thousand mighty men of valour, and sent them away by night.

General references

Bible References

By night

Matthew 24:39
and they knew not till the flood came and took all away; thus also shall be the coming of the Son of man.
Matthew 25:6
But in the middle of the night there was a cry, Behold, the bridegroom; go forth to meet him.
1 Thessalonians 5:2
for ye know perfectly well yourselves, that the day of the Lord so comes as a thief by night.
2 Peter 3:10
But the day of the Lord will come as a thief, in which the heavens will pass away with a rushing noise, and the elements, burning with heat, shall be dissolved, and the earth and the works in it shall be burnt up.

General references

Joshua 8:11
And all the people of war that were with him went up, and drew near, and came before the city; and they encamped on the north of Ai; and the valley was between them and Ai.