How can I obtain assurance of salvation?

Summary

This sermon addresses the struggle with doubt by emphasizing the importance of understanding the doctrine of salvation, particularly penal substitution, as the foundation of security. Instead of relying solely on past events or prayer, genuine believers will exhibit certain "marks" such as love for God, Scripture, the church, and others, coupled with humility and a desire for righteousness. The practical takeaway is that the direction of one's heart towards these qualities, not perfection, demonstrates true salvation.