Luke 13:24

"Struggle to enter in by the narrow door," he answered, "for I tell you that many will try to enter and not be able,

Hebrews 6:11-12

but I am longing that each of you continue to show the same diligence to realize the fulness of your hope, even to the end.

2 Peter 1:5

For this very reason do your best to add to your faith manliness, and to manliness knowledge,

2 Peter 1:10

So, brothers, take diligent care to make your calling and election sure; for if you do this, you will never stumble.

Treasury of Scripture Knowledge

Summary

And they returned to Joshua, and said unto him, Let not all the people go up; but let about two or three thousand men go up and smite Ai; and make not all the people to labour thither; for they are but few.

Bible References

About two

Luke 13:24
"Struggle to enter in by the narrow door," he answered, "for I tell you that many will try to enter and not be able,
Hebrews 6:11
but I am longing that each of you continue to show the same diligence to realize the fulness of your hope, even to the end.
2 Peter 1:5
For this very reason do your best to add to your faith manliness, and to manliness knowledge,