Cross reference
1 Corinthians 3:20
20 And again, "The Lord knows the reasoning of the wise, that it is worthless."
Psalms 94:11
11 Yahweh knows the thoughts of man, That they are futile.
Colossians 2:8
8 Be careful that you don't let anyone rob you through his philosophy and vain deceit, after the tradition of men, after the elements of the world, and not after Christ.
Romans 1:21
21 Because, knowing God, they didn't glorify him as God, neither gave thanks, but became vain in their reasoning, and their senseless heart was darkened.
Job 11:11-12
11 For he knows false men. He sees iniquity also, even though he doesn't consider it.
12 But vain man can become wise If a man can be born as a wild donkey's colt.
Psalms 2:1
1 Why do the nations rage, And the peoples plot a vain thing?