How do we know that Christ's sacrifice is accepted by God?

The assurance of Christ's accepted sacrifice is rooted in His resurrection. As stated in Romans 4:25, 'He was delivered up for our offenses, and was raised again for our justification.' This demonstrates that His sacrifice for sin fulfilled God's requirements. The burnt offerings of the Old Testament foreshadowed Christ's ultimate sacrifice and, like fire consuming those offerings, God accepted Christ's offering fully. Hence, believers are justified and accepted in the beloved (Ephesians 1:6), directly tied to His victorious resurrection, which signifies God's satisfaction with Christ's atoning work.