The "bow of steel" in (A.V.) 2 Samuel 22:35; Job 20:24; Psalm 18:34 is in the Revised Version "bow of brass" (Hebrews kesheth-nehushah). In Jeremiah 15:12 the same word is used, and is also rendered in the Revised Version "brass." But more correctly it is copper (q.v.), as brass in the ordinary sense of the word (an alloy of copper and zinc) was not known to the ancients.