What role does faith play in Christian assurance?

In the context of assurance, faith plays the central role as it directs the believer's focus to Christ, rather than their personal efforts or feelings. The sermon emphasizes that a person's assurance should not be based on the perceived strength or quality of their faith, but solely on their belief in the Son of God. This understanding is crucial because it helps prevent self-deception and discouragement that can arise from focusing on one's performance rather than resting in the sufficiency of Christ's finished work. Thus, the assurance of salvation is rooted in faith that looks outward to Christ exclusively.