What does it mean to have assurance of salvation?

Assurance of salvation is the confidence that believers have in their relationship with Christ, rooted in Scripture and personal faith. 1 John 5:11-12 indicates that having the Son equates to possessing eternal life. This assurance is not based on personal merit or religious acts, but solely on the belief in Christ’s completed work on the cross. An individual's trust in Jesus as the Savior who has dealt with their sin gives rise to a steadfast confidence in their salvation. This assurance enables believers to stand firm against doubt and encourages them to live in light of their relationship with God.