True Basis for Boasting

Jeremiah 9:23-24

Thus saith the Lord: Let not the wise man glory in his wisdom, and let not the strong man glory in his strength, and let not the rich man glory in his riches:

But let him that glorieth glory in this, that he understandeth and knoweth me, for I am the Lord that exercise mercy, and judgment, and justice in the earth: for these things please me, saith the Lord.