2 Samuel 22:35 in the King James Version
He teacheth my hands to war; so that a bow of steel is broken by mine arms.
Context
34 He makes his feet like hinds’ feet, and sets me on my high places.
35 He teaches my hands to war, so that my arms bend a bow of bronze.
36 You have also given me the shield of your salvation. Your gentleness has made me great.