Hebrews 10:8-14 Revised Standard Version (RSV)
8 When he said above, “Thou hast neither desired nor taken pleasure in sacrifices and offerings and burnt offerings and sin offerings” (these are offered according to the law), 9 then he added, “Lo, I have come to do thy will.” He abolishes the first in order to establish the second. 10 And by that will we have been sanctified through the offering of the body of Jesus Christ once for all.
11 And every priest stands daily at his service, offering repeatedly the same sacrifices, which can never take away sins. 12 But when Christ[a] had offered for all time a single sacrifice for sins, he sat down at the right hand of God, 13 then to wait until his enemies should be made a stool for his feet. 14 For by a single offering he has perfected for all time those who are sanctified.