Hebrews 7:1-10 He Lives.
Our author continued his practice of quoting from at least two witnesses to make his point, in this case two references with respect to Melchizedek–Genesis 14:17-20; Ps. 110:4. Throughout the scriptures there is no other case of a king being lawfully able to also occupy and exercise the office of a priest. To do so would be to politicize the religious sphere on the one hand, or to give to the state a role of being messianic in character and function. However, there is abundant evidence that the Messiah would occupy both these offices together, along with that of the Prophet. From this one, Abraham was blessed (v. 1). “Now beyond all contradiction the lesser is blessed by the greater” (v. 7). This is why our author appeals to this probable pre-incarnate appearance of the Son.
This alone explains Abraham’s behaviour, including the giving of his tithe to him (v. 2, 4). This king, as with the Messiah, was and is a king of peace, and king of righteousness (v. 3). Furthermore, our author makes the point that the Aaronic order received tithes offered to God, but because Abraham was their progenitor and covenantal head, they were in fact offering these tithes to Melchizedek in this early act with respect to this Melchizedek (v. 5, 8-9; 5:6; 6:20; Nu. 18:21-24; II Chron. 31:4). The point is, this Melchizedek had no such dependence. He who was not part of the genealogy “received tithes from Abraham and blessed him who had the promises” (v. 6). Our author refers to this Melchizedek not as one who lived, past tense, but one who lives (Cf. Rev. 1:18).