She brought up one of her whelps - Jehoahaz, son of Josiah, whose father was conquered and slain by Pharaoh-necho, king of Egypt.
It learned to catch the prey - His reign was a reign of oppression and cruelty. He made his subjects his prey, and devoured their substance.
Compare the marginal reference. The short reign of Jehoahaz was marked by violence and idolatry, and was closed by Pharaoh-Necho‘s carrying him captive into Egypt.