'Man's' in the Bible

And they said, Thou hast not defrauded us, nor oppressed us, neither hast thou taken ought of any man's hand.

And Saul and all the people that were with him assembled themselves, and they came to the battle: and, behold, every man's sword was against his fellow, and there was a very great discomfiture.

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