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 10:8

10:8 When he says above, “Sacrifices and offerings and whole burnt offerings and sin-offerings you did not desire nor did you take delight in them” 1  (which are offered according to the law),

1 sn Various phrases from the quotation of Ps 40:6 in Heb 10:5-6 are repeated in Heb 10:8.