The final commandment
This article from Kleyn's exposition of Lord's Day 44 of the Heidelberg Catechism examines the tenth commandment as the capstone of God's moral law, emphasizing its unique focus on the hidden desires of the heart rather than outward behavior. The piece explains how this commandment reveals both our sinful nature and God's role as judge of hearts, while exploring the pedagogical purpose of the law in driving believers toward Christ and sanctification. The treatment combines catechetical instruction with practical application for understanding the complete scope of God's commandments.
Lord's Day 44 Question 113. What doth the tenth commandment require of us? Answer. That even the smallest inclination or thought contrary to any of God's commandments never arise in our hearts; but that at all times we hate all sin with our whole heart, and delight in all righteousness. Question 114. But can those who are converted to God perfectly keep these commandments? Answer. No; but even the holiest men, while in this life, have only a small beginning of this obedience; yet so, that...
Full article available on sb.rfpa.org