John 6:27

Labour not for the meat which perisheth, but for that which endureth to everlasting life, which the Son of man will give you; for him hath God the Father sealed.

1 Corinthians 15:58

Therefore, my beloved brethren, be ye stedfast, unmovable, always abounding in the work of the Lord, knowing that your labour is not vain in the Lord.

Hebrews 6:11-12

But we desire that every one of you would shew unto the end the same diligence, to the full assurance of hope,

2 Peter 1:5-10

For this very reason giving all diligence, add to your faith courage,

Treasury of Scripture Knowledge

Summary

He becometh poor that dealeth with a slack hand: but the hand of the diligent maketh rich.

Bible References

Becometh

John 6:27
Labour not for the meat which perisheth, but for that which endureth to everlasting life, which the Son of man will give you; for him hath God the Father sealed.
Hebrews 6:11
But we desire that every one of you would shew unto the end the same diligence, to the full assurance of hope,
2 Peter 1:5
For this very reason giving all diligence, add to your faith courage,

But

1 Corinthians 15:58
Therefore, my beloved brethren, be ye stedfast, unmovable, always abounding in the work of the Lord, knowing that your labour is not vain in the Lord.