power and wisdom in creation are evidences of His superiority to all idols (vv. 17, 18), who along with their worshipers will all be destroyed by His mighty power (vv. 15, 16, 19), as in Babylon’s case. 51:20–23 You are My battle-ax. Cyrus of Persia was God’s war club. Ten times the phrase “with you” hits with the force of a hammer. 51:25 destroying mountain. Though Babylon existed on a plain, this phrase was meant as a portrayal of Babylon’s looming greatness and power in devastating nations (cf.