He teaches my hands to make war, so that a bow of bronze is bent by my arms.
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Augustine of Hippo
AD 430
35. "Who teacheth my hands for battle" (ver. 34). Who teacheth me to work for the overthrow of mine enemies, who strive to shut the kingdom of heaven against us. "And Thou hast made mine arms as a bow of steel." And Thou hast made my earnest striving after good works unwearied.
And thou. Chaldean gives the same sense. "He strengthens "(Calmet)
Hebrew, "and a brazen bow is broken by my arms. "(Montanus)
Protestants, "a bow of steel. "Perhaps not knowing that the ancients had the art of making brass answer the same purposes. See Proclus, Hesiod (Haydock)
They made all sorts of weapons of it. Job (xx. 24.) seems even to insinuate that it was harder than iron. Our brass is too brittle. To break a bow, often means to obtain a victory, 1 Kings ii. 4., and Jeremias xlix. 5. (Calmet)
David gained many over a lion or a bear, over Goliath (Worthington)