How do we know that God is just to forgive our sins?

According to Romans 3:23-25, God declares His righteousness in the salvation of His people, revealing that He is just to forgive because the penalty for sin has been paid through Christ. The cleansing from our sins is not based on our confession but rather on God's justice, which is satisfied in the death of His Son. Therefore, when we confess our sins, we are acknowledging that God is not compromising His justice; instead, He is being faithful to His promises to forgive and cleanse us because the condition for forgiveness—Christ's sacrificial death—has been fulfilled.