Abraham was truly a great man! God chose to make His covenant with him, that "in his seed, all the families of the earth should be blessed." But when Melchizedek met Abram when he returned from the slaughter of the kings, Abram paid tithes to Melchizedek blessed him, thus showing that Melchizedek was greater. Melchizedek was a priest and a king, and a prominent type of Christ.