Explanation:
Melchizedek was king of Jerusalem, much earlier than the Jews had inhabited it, and was a priest of the Highest God, as the Bible says, referring to the omnipresent, omnipotent God. He lived in the time of Abraham, and as it is also recorded in the Bible, welcomed Abraham from his return from the campaign of war, blessed him, offered him bread and wine, and said that blessed was he who came in the name of the Lord.
By bringing bread and wine, Melchizedek symbolically represents the prophecy of the future coming of Jesus Christ, as supreme priest, son of God. In addition, an important parallel, that Christ's priesthood after order of Melchizedek, is better than the priesthood of Aaron, is that Melchizedek was not in blood kinship with Abraham, whom he blessed, because Melchizedek was not Jewish.
This is important because Aaron was chosen from one of the tribes of Israel to be a priest among the Jews. According to the laws of Moses, this tribe always gave the priesthood to serve and judge among the Jews.
As Christ, upon his arrival, healed and taught, preached to the Jews, but not only to them, let us remind ourselves that he healed the servant of the Roman Centurion, and many other non-Jews. This means that Christ, as the son of God, became the supreme priest, it has been shown throughout history to all non-Jewish Christians. This again means that the priesthood of Christ is based on righteousness and faith, as was Melchizedek. Unlike the Aaron Priesthood, which was based on blood kinship, since he was from one of the Jewish tribes, he served only the Jews, and the Old Testament law forbade him to serve non-Jews.
