'Fellow' in the Bible

And Saul and all the people that were with him were called together, and they came to the battle; and behold, every man's sword was against his fellow, a very great confusion.

But the princes of the Philistines were wroth with him; and the princes of the Philistines said to him, Make the man return, that he may go again to his place where thou hast appointed him, that he go not down with us to the battle, that in the battle he be not an adversary to us; for wherewith should this fellow reconcile himself to his master? should it not be with the heads of these men?