Hebrews 7:3

7:3 Without father, without mother, without genealogy, he has neither beginning of days nor end of life but is like the son of God, and he remains a priest for all time.

Hebrews 7:16-17

7:16 who has become a priest not by a legal regulation about physical descent ¹  but by the power of an indestructible life. 7:17 For here is the testimony about him: ²  “You are a priest forever in the order of Melchizedek.” ³ 

Hebrews 7:28

7:28 For the law appoints as high priests men subject to weakness, ⁴  but the word of solemn affirmation that came after the law appoints a son made perfect forever.

[7:16]  ¹ tn Grk “a law of a fleshly command.”

[7:17]  ¹ tn Grk “for he/it is witnessed that.”

[7:17]  ² sn A quotation from Ps 110:4 (see Heb 5:6 and 6:20).

[7:28]  ¹ sn See Heb 5:2 where this concept was introduced.