Jer 17:5-10

Thus says the LORD:
Cursed is the man who trusts in human beings,
who seeks his strength in flesh,
whose heart turns away from the LORD.
He is like a barren bush in the desert
that enjoys no change of season,
But stands in a lava waste,
a salt and empty earth.
Blessed is the man who trusts in the LORD,
whose hope is the LORD.
He is like a tree planted beside the waters
that stretches out its roots to the stream:
It fears not the heat when it comes,
its leaves stay green;
In the year of drought it shows no distress,
but still bears fruit.
More tortuous than all else is the human heart,
beyond remedy; who can understand it?
I, the LORD, alone probe the mind
and test the heart,
To reward everyone according to his ways,
according to the merit of his deeds.