'Man's' in the Bible

For is it man's favour or God's that I aspire to? Or am I seeking to please men? If I were still a man-pleaser, I should not be Christ's bondservant.

For I want you to know, believers, that the gospel which was preached by me is not man’s gospel [it is not a human invention, patterned after any human concept].

But of these who seemed to be somewhat, (whatsoever they were, it maketh no matter to me: God accepteth no man's person:) for they who seemed to be somewhat in conference added nothing to me:

Brethren, I speak after the manner of men; Though it be but a man's covenant, yet if it be confirmed, no man disannulleth, or addeth thereto.