Hebrews 7:3

Overview - Hebrews 7
Christ Jesus is a priest after the order of Melchisedec;
11 and so far more excellent than the priests of Aaron's order.
Treasury of Scripture Knowledge

Hebrews 7:3  (King James Version)
Without father, without mother, without descent, having neither beginning of days, nor end of life; but made like unto the Son of God; abideth a priest continually.

Without father
That is, as the Syriac renders, "Whose father and mother are not inscribed among the genealogies; and therefore it was not known who he was."

Greek pedigree.
Exodus 6:18 Exodus 6:20-27 ; 1 Chronicles 6:1-3

a priest
Hebrews 7:17 Hebrews 7:23-28