Hebrews 10:11-12

Furthermore, every [human] priest stands [at his altar of service] ministering daily, offering the same sacrifices over and over again, which never are able to strip [from every side of us] the sins [that envelop us] and take them away– Whereas this One [Christ], after He had offered a single sacrifice for our sins [that shall avail] for all time, sat down at the right hand of God