Jeremiah 8:9

For the word of the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God.

and how from childhood you have known the sacred writings which are able to make you wise for salvation through faith in Christ Jesus.

Treasury of Scripture Knowledge

The wise men are ashamed, they are dismayed and taken: lo, they have rejected the word of the LORD; and what wisdom is in them?

For consider your call, brethren; not many of you were wise according to fleshly standards, not many were powerful, not many were of noble birth.

For the word of the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God.

and how from childhood you have known the sacred writings which are able to make you wise for salvation through faith in Christ Jesus.

Therefore be careful that the light in you is not darkness.

Claiming to be wise, they became fools,

For it is written, "I will destroy the wisdom of the wise, and the cleverness of the clever I will frustrate."