How do we know that Jesus purged our sins?

The guarantee of sin's purging rests on the biblical assertion that Jesus’ sacrifice was sufficient for the sins of His people. Hebrews 1:3 states that He 'purged our sins' and sat down at the right hand of the Majesty on high, indicating that His work was completed and accepted by the Father. This assurance is also echoed in Romans 8:33, where it is declared that, 'It is God that justifies.' If God justifies and there can be no charges against His elect, it follows that Jesus' sacrificial atonement was comprehensive and effective. Thus, believers can have full confidence in the efficacy of Christ's cleansing blood.