Hebrews 7:27

Who needeth not daily, as those high priests, to offer up sacrifice, first for his own sins, and then for the people’s: for this he did once, when he offered up himself.

Unlike the human high priests who needed to offer sacrifices daily and repeatedly, first for their own sins and then for the people's, Christ offered up himself once. He needed no sacrifice for himself because he had no sin of his own to atone for, being holy, harmless, undefiled, separate from sinners and made higher than the heavens; unlike men made high priests by the law who have infirmity, he is the Son made by the word of the oath which was since the law and consecrated for evermore. Though he took the form of sinful humanity and clothed his divinity with humanity, his spotless character qualified him to bear sin. The other high priests were only types of Christ, so when he appeared the need for their sacrificial service vanished; his death is the antitype of all the sacrificial offerings, and his ministry is the great reality that cast its shadow backward and makes clear the ministry of the Jewish priesthood.

His one self-offering made a perfect and complete atonement for sin that is sufficient for all eternity, offered as the propitiation for the sins of the whole world. That atonement avails for all, is able to save to the uttermost all who come to God by him, works out a perfect character for believers, opened a new and living way through his suffering and death, and removed the wall of partition between Jew and Gentile.

Having offered himself, he took up and entered upon his priestly office forever as High Priest for the whole world with an unchangeable priesthood that continues forever, ministering in the heavenly sanctuary; he is both the priest who intercedes for sinners and the offering made for their sins, and no one else can take his office or perform his work. He alone is Priest and Mediator between God and humanity, ever living to make intercession in the heavenly courts, touched with the feeling of human infirmities having been tempted in all points as humans are; no mortal person is to stand between a sinner and God as intercessor or recipient of confession, but sinners may come directly to Jesus, who accepts those who believe in him and cleanses them from moral defilement.

Reasoned from Moses and the prophets, his atoning sacrifice and sanctuary ministry prove that the promised Messiah for whose advent Israel longed has already come, and his single offering provides the way to God's favor which pilgrimages, offerings, prayers to saints, and religious garments cannot secure. His unfailing heavenly resources and enduring priestly work are the basis for confidence, so tempted sinners wholly dependent on his merits and grace, apart from whom they can do no good thing, must draw near with full assurance of faith and depend wholly on him, look away from discouraging presentations and appearances, thank God, stop worrying out of the arms of the Saviour, and cling with strong, unfailing faith to the promises while God tests faith, to be dealt with according to their works as saved by the blood of the Lamb or condemned.