'Man's' in the Bible

And they said, Thou hast not defrauded us, and thou hast not injured us, neither hast thou taken aught of any man's hand.

And Saul and all the people that were with him were called together, and they came to the battle; and behold, every man's sword was against his fellow, a very great confusion.

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