Likewise in the Ten Commandments, one must ask: What is meant by the First, the Second, the Third, and the other commandments? One may take these questions from our Betbüchlein where the three parts are briefly explained, or make others, until the heart may grasp the whole sum of Christian truth under two headings or, as it were, in two pouches, namely, faith and love. Faiths pouch may have two pockets. Into one pocket we put the part [of faith] that believes that through the sin of Adam we are all corrupt, sinners, and under condemnation, Romans 5 [:12], Psalm 51 [:5]. Into the other we put the part [of faith that trusts] that through Jesus Christ we all are redeemed from this corruption, sin, and condemnation, Romans 5 [:15–21], John 3 [:16–18]. Loves pouch may also have two pockets. Into the one put this piece, that we should serve and do good to everyone, even as Christ has done for us, Romans 13. Into the other put this piece, that we should gladly endure and suffer all kinds of evil. (Luther’s Works, v. 53, p.64-67).