Hebrews 10:12

But this man, after he had offered one sacrifice for sins: opposed to the legal priests is this Priest, God-man, an almighty Minister, having once offered, and no more, one sacrifice of his body for the sins of others, (he had none of his own, as every other priest had), that they might be pardoned and remembered no more, it being of eternal virtue and efficacy. For ever must be joined to the sacrifice to complete the opposition, Hebrews 10:11. The legal one could never take away sins, but his one sacrifice could take them away for ever. Sat down on the right hand of God; he ceased from sacrificing any more, and ascended up to heaven, and there he sat himself down (having abolished sin, and finished his work as a servant for ever) in the highest place of dominion and power at God's right hand, while the Aaronites stood trembling and waiting at God's foot-stool: and thence he powerfully and efficaciously commands the blotting out of sins, applieth his merits, and dispenseth to his servants the covenant mercies which he purchased by his own blood for them, Hebrews 1:3, Hebrews 2:9 8:2.