1 Samuel 17:39

And David girded his sword upon his armor, and he assayed to go; for he had not proved it. And David said unto Saul, I cannot go with these; for I have not proved them. And David put them off him.

David girded his sword on his clothing, and he tried to go; for he had not proved it. David said to Saul, I can't go with these; for I have not proved them. David put them off him.

And David girded his sword upon his apparel, and he assayed to go; for he had not proved it. And David said unto Saul, I cannot go with these; for I have not proved them. And David put them off him.

And David girded his sword above his long robe, and beginneth to go, for he hath not tried `it'; and David saith unto Saul, `I am not able to go with these, for I had not tried;' and David turneth them aside from off him.

David strapped his sword over the tunic and tried to walk, but he was not accustomed to them. “I cannot walk in these,” David said to Saul. “I am not accustomed to them.” So David took them off.