How do we know Christ's work on the cross is finished?

The assurance that Christ's work on the cross is finished comes from His own declaration in John 19:30, where He states, 'it is finished.' This profound statement indicates that He has perfectly fulfilled all the requirements of the law and the demands of divine justice on behalf of His people. The resurrection of Christ serves as a further confirmation of this finished work, as it validates that the sacrifice was accepted by God and that the sin debt was fully paid. Moreover, biblical prophecies, such as those found in Daniel 9:24, foretold that Christ would put an end to transgressions, which He accomplished through His voluntary and sacrificial death.