There are ways in which Melchizedek was like God’s Son.

Hebrews 7:1-3

7 Now I will say more about this man Melchizedek. He was the king of Salem city and was a priest of God, the one who is greater than anyone else. He met Abraham who was returning home after he and his men had defeated the armies of four kings [SYN]. Melchizedek asked God to bless Abraham. 2 Then Abraham gave to him one tenth of all the spoils he took after winning the battle. Melchizedek’s name means firstly ‘king who rules righteously’, and since Salem means ‘peace’, he was the ‘king who rules peacefully’. 3 In the Scriptures there is no record of who his father was, nor is there any record of who his mother was, nor is there any record of who his ancestors were. There is no record of when he was born, nor is there any record of when he died. For these reasons, it is as though he continues to be a priest forever, and for this reason he is like God’s Son.