One more resemblance of Melchizedek to the Son of God:
He brought Bread and Wine to Abraham, after the victory of Abraham. (Genesis 14:18)
Jesus gave us the Bread and Wine which is to be celebrated after His Victory at the Cross.
Jesus was King of Righteousness, King of Peace ( Isaiah 9:6) and had no earthly father, no earthly mother ( Mary was just a surrogate mother, not the biological mother, Jesus was the Creator of Mary), no days of beginning, no end of life, everlasting priest, no genealogy ( Mt1, Lk 4 show the genealogy for His surrogate mother and step father to show to the human beings).
Whose goings forth have been from of old, from ever lasting. ( Micah 5:2)
So Heb 7 says Melchizedek is like unto Son of God, because they are 2 photograhs of one person, one before Incarnation (enfleshing) the other after Incarnation, like the comparison between the photo of youth and the other photo of old age.
Jesus identifies Himself the same as the one Abraham saw ( John 8:56-58)
Your father rejoiced to see my day and he saw it, and was glad. ( Jn 8:56) ( some people argue that Jesus mentioned His day, not Him)
Hast thou seen Abraham ? ( Jn 8:57)
Before Abraham was, I am
Jesus didn't deny that Abraham saw Him.