Melchizedek was a Man of God without human nature who suddenly appeared to bless Abraham. Melchizedek was no different from God who was accompanied by 2 angels in human form to meet Abraham (Genesis 18:1-2 and 19:1). The same as Man of God who wrestled with Jacob (Genesis 32:30). The same as Man of God who met Joshua (Joshua 5:13-15). The same as Man of God who met Manoah and his wife, Samson's parent (Judges 23:8,22). Melchizedek is Christ God in human form. Christ or Messiah is the second personal aspect of the Word that acts as the Father and of the Son and of the Holy Spirit. Mat 28:19 ..into The name of The Father and of The Son and of The Holy Spirit. “Being without father, without mother, without genealogy; having neither beginning of days nor end of life, but likened to the Son of God, abides a priest perpetually." (Hebrews 7:3) Jesus is from the tribe of Judah became Jesus Christ , Priest of the Most High God forever according to the order of Melchizedek without beginning and without end. Aaron became a high priest all his life because of descendant from the tribe of Levi . Jesus is Man of God / God’s Incarnation with human nature who came to die to redeem sinful men, and rose as the God's life-giving Spirit to dispense God's eternal life. "Just as the Son of Man did not come to be served, but to serve and to give His life as a ransom for many." (Matthew 20:28) "The thief does not come except to steal and kill and destroy; I have come that they may have life and may have it abundantly." (John 10:10) "Who gave Himself as a ransom for all, the testimony to be borne in its own times." (1 Timothy 2:6) "So also it is written, “The first man, Adam, became a living soul”; the last Adam became a life-giving Spirit." (1 Corinthians 15:45) "For God so loved the world that He gave His only begotten Son, that everyone who believes into Him would not perish, but would have eternal life." (John 3:16)