Heidelberg Catechism, Lord's Day 25

Lord's Day 25 of the Heidelberg Catechism addresses the work of the Holy Spirit in the Christian's life, exploring themes of justification and sanctification through question-and-answer format. This catechetical text serves as a foundational teaching tool for understanding Reformed doctrine on how believers are declared righteous and progressively made holy through Christ's work and the Spirit's application of redemption.