Ezekiel 19:6

And he went up and down among the lions, he became a young lion, and learned to catch the prey, and devoured men.

And he went up and down among the lions - imitated the recklessness, oppression, injustice, covetousness, and tyranny of the surrounding kings (Jeremiah 22:13).

And learned to catch the prey - to do evil, gratifying his lusts by oppression ().