Heidelberg Catechism, Lord's Day 27
Lord's Day 27 of the Heidelberg Catechism addresses the believer's gratitude and obedience flowing from salvation, emphasizing the connection between justification and the Christian's sanctified life. This section is foundational catechetical material designed to instruct covenant children and believers in how the gospel transforms daily living and motivates good works.
[Lord's Day 27 text - parse manually from https://www.crcna.org/welcome/beliefs/confessions/heidelberg-catechism]