'Man's' in the Bible

And Jesus made answer to him, It has been said in the Writings, Bread is not man's only need.

And he said to them, Take care to keep yourselves free from the desire for property; for a man's life is not made up of the number of things which he has.

And they put a question to him, saying, Master, we are certain that your teaching and your words are right, and that you have no respect for a man's position, but you are teaching the true way of God:

Master, Moses said that if a man's brother comes to his end, having a wife, but no children, his brother is to take the wife, and get a family for his brother.