Psalm 18:34 in the King James Version
He teacheth my hands to war, so that a bow of steel is broken by mine arms.
Context
33 He makes my feet like deer’s feet, and sets me on my high places.
34 He teaches my hands to war, so that my arms bend a bow of bronze.
35 You have also given me the shield of your salvation. Your right hand sustains me. Your gentleness has made me great.