The enemy digs a deep pit to bury David in it, but he plunges in it himself. Misfortune and brute force return to him like a boomerang. See Proverbs 26:27, Whoever digs a pit will fall into it, and a stone will come back on him who starts it rolling.
16 Il ouvre une fosse, il la creuse,Et il tombe dans la fosse qu'il a faite.