'Men' in the Bible

Take heed lest there shall be any one that maketh spoil of you through his philosophy and vain deceit, after the tradition of men, after the rudiments of the world, and not after Christ:

(all which things are to perish with the using), after the precepts and doctrines of men?

whatsoever ye do, work heartily, as unto the Lord, and not unto men;

and Jesus that is called Justus, who are of the circumcision: these only are my fellow-workers unto the kingdom of God, men that have been a comfort unto me.