Psalm 94:11

The LORD knoweth the thoughts of men, that they are but vain.

1 Corinthians 3:20

And again, "God knoweth the thoughts of the wise that they be vain."

Job 11:11-12

For it is he that knoweth the vanity of men. He seeth their wickedness also; should he not then consider it?

Psalm 49:10-13

For he seeth that wise men also die and perish together, as well as the ignorant and foolish, and leave their riches for others.

Romans 1:21-22

inasmuch as when they knew God, they glorified him not as God, neither were thankful: but waxed full of vanities in their imaginations. And their foolish hearts were blinded.

1 Corinthians 1:19

For it is written, "I will destroy the wisdom of the wise and will cast away the understanding of the prudent."

1 Corinthians 1:21

For when the world, through wisdom, knew not God in the wisdom of God: it pleased God through foolishness of preaching to save them that believe.

1 Corinthians 1:25

For the foolishness of God is wiser than men: And the weakness of God is stronger than are men.

Treasury of Scripture Knowledge

Summary

The LORD knoweth the thoughts of man, that they are vanity.

Bible References

General references

Psalm 49:10
For he seeth that wise men also die and perish together, as well as the ignorant and foolish, and leave their riches for others.
Job 11:11
For it is he that knoweth the vanity of men. He seeth their wickedness also; should he not then consider it?
Romans 1:21
inasmuch as when they knew God, they glorified him not as God, neither were thankful: but waxed full of vanities in their imaginations. And their foolish hearts were blinded.
1 Corinthians 1:19
For it is written, "I will destroy the wisdom of the wise and will cast away the understanding of the prudent."