Joshua 7:3

and returned unto Joshua and said unto him, "Let not all the people go up, but let as it were a two or three thousand men go up and destroy Ai, and make not all the people to labour thither, for they are but few."

Proverbs 13:4

The sluggard would fain have, and cannot get his desire; but the soul of the diligent shall have plenty.

Proverbs 21:25

The voluptuousness of the slothful is his own death, for his hands will not labour.

Luke 13:24

"Strive with yourselves to enter in at the strait gate: For many, I say unto you, will seek to enter in, and shall not be able.

Hebrews 4:11

Let us study therefore to enter into that rest; lest any man fall, after the same example, into unbelief:

Hebrews 6:11-12

Yea, and we desire that every one of you show the same diligence, to the establishing of hope, even unto the end:

2 Peter 1:5

And hereunto, give all diligence: In your faith, minister virtue; and in virtue, knowledge;

2 Peter 1:10

Wherefore, brethren, give the more diligence for to make your calling and election sure. For if ye do such things, ye shall never err.

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

Proverbs 13:4
The sluggard would fain have, and cannot get his desire; but the soul of the diligent shall have plenty.
Proverbs 21:25
The voluptuousness of the slothful is his own death, for his hands will not labour.
Luke 13:24
"Strive with yourselves to enter in at the strait gate: For many, I say unto you, will seek to enter in, and shall not be able.
Hebrews 4:11
Let us study therefore to enter into that rest; lest any man fall, after the same example, into unbelief:
Hebrews 6:11
Yea, and we desire that every one of you show the same diligence, to the establishing of hope, even unto the end:
2 Peter 1:5
And hereunto, give all diligence: In your faith, minister virtue; and in virtue, knowledge;