What does the Bible say about the purging of sins?

According to Hebrews 1:3, Jesus Christ purged our sins by Himself and subsequently sat down at the right hand of God, indicating that this work was fully accomplished and requires no additional effort from us. This act of purging is necessary because humanity is inherently sinful; we need our sins completely erased for reconciliation with God. The doctrine emphasizes that this purging of sins was not a cooperative effort but a singular, divine act performed by Christ alone, highlighting His sovereignty and grace toward the elect.