In his magnificent work, A Treatise on the Law and the Gospel, John Colquhoun has a chapter titled, “Rules for Rightly Understanding the Ten Commandments” (pp 85-98), which is similar to Question 99 of the Westminster Larger Catechism, “What rules are to be observed for the right understanding of the Ten Commandments?” I highly recommend all of Colquhoun’s book, but this chapter is helpful to Christians in understanding how to apply the Ten Commandments in their lives. Let us apply these rules to ourselves and teach them to our children.