1 Corinthians 15:36

unwise! thou -- what thou dost sow is not quickened except it may die;

John 12:24

verily, verily, I say to you, if the grain of the wheat, having fallen to the earth, may not die, itself remaineth alone; and if it may die, it doth bear much fruit;

Luke 11:40

unthinking! did not He who made the outside also the inside make?

Luke 12:20

And God said to him, Unthinking one! this night thy soul they shall require from thee, and what things thou didst prepare -- to whom shall they be?

Luke 24:25

And he said unto them, 'O inconsiderate and slow in heart, to believe on all that the prophets spake!

Romans 1:22

professing to be wise, they were made fools,

Ephesians 5:15

See, then, how exactly ye walk, not as unwise, but as wise,

Treasury of Scripture Knowledge

Summary

Thou fool, that which thou sowest is not quickened, except it die:

That

Bible References

Fool

Luke 12:20
And God said to him, Unthinking one! this night thy soul they shall require from thee, and what things thou didst prepare -- to whom shall they be?
Luke 24:25
And he said unto them, 'O inconsiderate and slow in heart, to believe on all that the prophets spake!
Romans 1:22
professing to be wise, they were made fools,
Ephesians 5:15
See, then, how exactly ye walk, not as unwise, but as wise,

That

John 12:24
verily, verily, I say to you, if the grain of the wheat, having fallen to the earth, may not die, itself remaineth alone; and if it may die, it doth bear much fruit;