Matthew 13:13-15

Therefore I speak to them in parables, because seeing they see not, and hearing they hear not, nor understand.

Matthew 13:19

When any one heareth the word of the kingdom, and understandeth it not, the Evil One cometh, and snatcheth away that which was sown in his heart; this man is what was sown by the wayside.

Romans 1:28

And as they did not choose to retain God in their knowledge, God gave them up to a reprobate mind, to do things which are shameful;

2 Peter 3:5

For of this they are willingly ignorant, that of old by the word of God there were heavens, and an earth formed out of the water and by the water,

Treasury of Scripture Knowledge

Summary

The ox knoweth his owner, and the ass his master's crib: but Israel doth not know, my people doth not consider.

Bible References

But israel

Matthew 13:13
Therefore I speak to them in parables, because seeing they see not, and hearing they hear not, nor understand.
Romans 1:28
And as they did not choose to retain God in their knowledge, God gave them up to a reprobate mind, to do things which are shameful;
2 Peter 3:5
For of this they are willingly ignorant, that of old by the word of God there were heavens, and an earth formed out of the water and by the water,