Heidelberg Catechism, Lord's Day 26
Lord's Day 26 of the Heidelberg Catechism addresses the believer's gratitude and Christian obedience as a response to salvation, connecting justification by faith with the sanctified life. This catechetical exposition serves as a foundational teaching tool for understanding how doctrine shapes Christian living and piety in the Reformed tradition.
[Lord's Day 26 text - parse manually from https://www.crcna.org/welcome/beliefs/confessions/heidelberg-catechism]