Jeremiah 9:23–24

"This is what the LORD says:
'Don't let the wise boast in their wisdom,
or the powerful boast in their power,
or the rich boast in their riches.
But those who wish to boast
should boast in this alone:
that they truly know me and understand that I am the LORD
who demonstrates unfailing love
and who brings justice and righteousness to the earth,
and that I delight in these things.
I, the LORD, have spoken!'"

What we "boast" of reveals where we stake our identity. Most people stake their identity on what they do best or on what they possess (verse 23). God says to base our identity on knowing him and understanding what he is like. What is he like? He's a God who demonstrates unfailing love, and brings justice and righteousness to the earth. Not only that, God delights in these things. It gives him pleasure. As we know him, we share in his nature. We too gain pleasure from love, justice, and righteousness. Our identity is rooted in his nature, in his delight.