'Man's' in the Bible

They said, "You have not defrauded us, nor oppressed us, neither have you taken anything of any man's hand."

Saul and all the people who were with him were gathered together, and came to the battle: and behold, every man's sword was against his fellow, [and there was] a very great confusion.

David said to Saul, "Let no man's heart fail because of him. Your servant will go and fight with this Philistine."