Middle man, one who can stand between two and have dealings with both. Such was Moses: he conveyed to the people the words of Jehovah, and carried to Jehovah the replies of the people. Again and again he pleaded their cause. The very fact of a mediator acting between two, is used by the apostle to show that God’s acting with Abraham was on a different principle. “A mediator is not of one, but God is one,” and He made to Abraham personally an unconditional promise (Gal. 3:19-20). The Lord Jesus is the Mediator—the only mediator—“between God and men” universally. It is through Him that God has been enabled to approach men in a Man with forgiveness of sins, and consequently to Him any poor sinner can go, and will in no wise be cast out. He is the Mediator of the new covenant that will be made with Israel in the future: they will be blessed only through Him, as the saints of God are now blessed through Him and in Him (1 Tim. 2:5; Heb. 8:6; Heb. 9:15; Heb. 12:24).