'Man' in the Bible

Give no belief to false words: because there will first be a falling away from the faith, and the revelation of the man of sin, the son of destruction,

And we did not take food from any man for nothing, but were working hard night and day not to be a trouble to any of you:

For even when we were with you we gave you orders, saying, If any man does no work, let him not have food.

And if any man does not give attention to what we have said in this letter, take note of that man, and keep away from him, so that he may be shamed.