A.T. Robertson Commentary Hebrews 7:27

"who needeth not daily, like those high priests, to offer up sacrifices, first for his own sins, and then for the [sins] of the people: for this he did once for all, when he offered up himself." — Hebrews 7:27 (ASV)

First (προτερον). Regular adverb for comparison between two, though πρωτον often occurs also (John 1:41), with επειτα (then) following.

For the sins (τον). Only the article in the Greek with repetition of υπερ or of αμαρτιων.

When he offered up himself (εαυτον ανενεγκας). First aorist active participle of αναφερω, to offer up. See same idea in 9:14 where εαυτον προσηνεγκεν is used. Old verb for sacrifice to place on the altar (1 Peter 2:5,24).