It cannot be gotten for gold
Job 28:18
No mention shall be made of coral, or of pearls: for the price of wisdom is above rubies.
Proverbs 3:13-15
13
Happy is the man that findeth wisdom, and the man that getteth understanding.
14
For the merchandise of it is better than the merchandise of silver, and the gain thereof than fine gold.
15
She is more precious than rubies: and all the things thou canst desire are not to be compared unto her.
Proverbs 8:10
Receive my instruction, and not silver; and knowledge rather than choice gold.
Proverbs 8:17
I love them that love me; and those that seek me early shall find me.
Proverbs 8:19
My fruit is better than gold, yea, than fine gold; and my revenue than choice silver.
Proverbs 16:16
How much better is it to get wisdom than gold! and to get understanding rather to be chosen than silver!