'Man's' in the Bible

Let his heart be changed from man's, and let a beast's heart be given unto him; and let seven times pass over him.

In the same hour came forth fingers of a man's hand, and wrote over against the candlestick upon the plaster of the wall of the king's palace: and the king saw the part of the hand that wrote.

The first was like a lion, and had eagle's wings: I beheld till its wings were plucked; and it was lifted up from the earth, and made to stand upon two feet as a man, and a man's heart was given to it.

And I heard a man's voice between the banks of the Ulai; and he called and said, Gabriel, make this man to understand the vision.