Proverbs 10:4-5

“Lazy people are soon poor; 

hard workers get rich. 

A wise youth harvests in the summer, 

but one who sleeps during harvest is a disgrace.”

Proverbs 10:4-5 NLT

Proverbs 10:5

“A wise youth harvests in the summer, 

but one who sleeps during harvest is a disgrace.”

Proverbs 10:5 NLT

It is sometimes difficult to balance this with the need for legitimate, appropriate rest.

Proverbs 6:6-11

“Take a lesson from the ants, you lazybones. Learn from their ways and become wise! 

Though they have no prince or governor or ruler to make them work, they labor hard all summer, gathering food for the winter. 

But you, lazybones, how long will you sleep? When will you wake up? 

A little extra sleep, a little more slumber, a little folding of the hands to rest— then poverty will pounce on you like a bandit; scarcity will attack you like an armed robber.”

Proverbs 6:6-11 NLT

http://bible.com/116/pro.6.6-11.nlt