How do we know that assurance is based on faith?

The assurance of salvation is intricately linked to our faith in Christ and His work on the cross. The Bible clearly teaches that our righteousness does not stem from our actions but through faith in Jesus' perfect life and sacrificial death. As Romans 4:5 indicates, faith is credited as righteousness, which reassures believers that they are fully acceptable to God. This means that any reliance on personal conduct for assurance can lead to uncertainty and spiritual turmoil. Instead, focusing on the objective truth of Christ’s fulfillment of the law gives believers a firm foundation for their assurance. True assurance is founded upon what Christ has done for us, leading to peace with God.