Joshua 8:3

So Joshua and {all the fighting men} went up immediately to Ai. Joshua chose thirty thousand of the best fighting men and sent them [by] night.

Matthew 24:39

And they did not know [anything] until the deluge came and swept [them] all away. So also the coming of the Son of Man will be.

Matthew 24:50

the master of that slave will come on a day that he does not expect and at an hour that he does not know,

Matthew 25:6

But in the middle of the night there was a shout, 'Behold, the bridegroom! Come out to meet him!'

1 Thessalonians 5:2

for [you] yourselves well know that the day of the Lord is coming in the [same] way as a thief in the night.

2 Peter 3:10

But the day of the Lord will come like a thief, in which the heavens will disappear with a rushing noise, and the celestial bodies will be destroyed [by] being burned up, and the earth and the deeds [done] on it will be disclosed.

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 did not know [anything] until the deluge came and swept [them] all away. So also the coming of the Son of Man will be.
Matthew 25:6
But in the middle of the night there was a shout, 'Behold, the bridegroom! Come out to meet him!'
1 Thessalonians 5:2
for [you] yourselves well know that the day of the Lord is coming in the [same] way as a thief in the night.
2 Peter 3:10
But the day of the Lord will come like a thief, in which the heavens will disappear with a rushing noise, and the celestial bodies will be destroyed [by] being burned up, and the earth and the deeds [done] on it will be disclosed.

General references

Joshua 8:11
{All the fighting men} who [were] with him {went up and drew near before the city} and camped north of Ai; [there was] a valley between him and Ai.