Assurance of faith is the conviction that one belongs to Christ through faith and will enjoy everlasting salvation. A person who has assurance not only believes in Christ’s righteousness as his salvation but knows that he believes and that he is graciously chosen, loved, and forgiven by God the Father for the sake of Christ Jesus, who has died for him and continues to pray for him in heaven. Such a person knows that the Holy Spirit has regenerated him and continues to sanctify him. In other words, he believes not only the facts of the gospel that Jesus Christ saves sinners by His Spirit merely of grace, but he also believes that the facts apply to him personally — that he has a personal interest in the gospel and that all the blessings proclaimed in that gospel are his (Joel R. Beeke, Knowing and Growing in Assurance of Faith, 11).