1 Samuel 17:37-39

Revised Standard Version

³⁷ And David said, “The Lord who delivered me from the paw of the lion and from the paw of the bear, will deliver me from the hand of this Philistine.” And Saul said to David, “Go, and the Lord be with you!” ³⁸ Then Saul clothed David with his armor; he put a helmet of bronze on his head, and clothed him with a coat of mail. ³⁹ And David girded his sword over his armor, and he tried in vain to go, for he was not used to them. Then David said to Saul, “I cannot go with these; for I am not used to them.” And David put them off.