'Used' in the Bible

David strapped his sword on over the military clothes and tried to walk, but he was not used to them. “I can’t walk in these,” David said to Saul, “I’m not used to them.” So David took them off.

David ran and stood over him. He grabbed the Philistine’s sword, pulled it from its sheath, and used it to kill him. Then he cut off his head. When the Philistines saw that their hero was dead, they ran.