1 Samuel 17:38-39

English Standard Version

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 strapped his sword over his armor. And he tried in vain to go, for he had not tested them. Then David said to Saul, “I cannot go with these, for I have not tested them.” So David put them off.