Who was Melchizedek in relation to Salem and God?
Melchizedek was both king of Salem, the city of peace, and priest of the Most High God. He was the high priest of all, not only Jews but also Gentiles. Christ's high priesthood is not after the order of Aaron but after the order of Melchizedek.
Les teaches that Melchizedek was also the king of Salem, the city of peace, but he was the priest of the Most High God. He explains there had to be a high priest, not just for the Jew but for the whole Gentile world as well. Melchizedek is priest of the Most High God, indicating predominantly the Gentile aspect, yet he is also going to be the high priest of the Jew—not just of Gentile, but of all. That is what Melchizedek was: the high priest of all. Therefore Christ's high priest is not after the order of Aaron but after the order of Melchizedek. The context notes the priesthood being changed means a change also of the law, and the Lord sprang out of Judah, not Levi.