'Mediate' in the Bible

If a person sins against another, God will mediate for him, but if a person sins against the LORD, who can intercede for him?"

"If there's a messenger appointed to mediate for Job one out of a thousand to represent the man's integrity on his behalf,

So now, bear your own shame as you mediate for your sisters. The sins that you've committed are more detestable than theirs. That makes them more righteous than you. Indeed, be ashamed and bear your reproach, because you've made your sisters to be more righteous than you."