Let the one who boasts boast about this: that they have the understanding to know me, that I am the Lord

 Jeremiah 9:1-26

Oh, that my head were a spring of water and my eyes a fountain of tears! I would weep day and night for the slain of my people. Oh, that I had in the desert a lodging place for travelers, so that I might leave my people and go away from them; for they are all adulterers, a crowd of unfaithful people.

They go from one sin to another; they do not acknowledge me,” declared the Lord.

Beware of your friends; do not trust anyone in your clan. For every one of them is a deceiver, and every friend a slanderer. Friend deceives friend, and no one speaks the truth. They have taught their tongues to lie; they weary themselves with sinning. You live in the midst of deception; in their deceit they refuse to acknowledge me, declared the Lord.

I will make Jerusalem a heap of ruins, a haunt of jackals; and I will lay waste the towns of Judah so no one can live there.”

Who is wise enough to understand this? Who has been instructed by the Lord and can explain it? Why has the land been ruined and laid waste like a desert that no one can cross?

“‘Dead bodies will lie like dung on the open field, like cut grain behind the reaper, with no one to gather them.’”

“Let not the wise boast of their wisdom or the strong boast of their strength or the rich boast of their riches, but let the one who boasts boast about this: that they have the understanding to know me, that I am the Lord, who exercises kindness, justice and righteousness on earth, for in these I delight,”  declares the Lord.

Why?

Why is Jeremiah's eyes a fountain of tears?

God asks us don't boast of our wisdom, strength, or rich?