For when I compare my life with the Law I see and experience always the contrary of what the Law enjoins. I shall entrust to God my body and soul, and love him with my whole heart; yet, I would rather have a dollar in my chest than ten gods in my heart, and I am happier when I know how to make ten dollars, than when I hear the whole Gospel. Let a prince give a person a castle or several thousand dollars, what a jumping and rejoicing it creates! On the other hand, let a person be baptized or receive the communion which is a heavenly, eternal treasure, there is not one-tenth as much rejoicing. Thus we are by nature; there is none who so heartily rejoices over God’s gifts and grace as over money and earthly possessions; what does that mean but that we do not love God as we ought? For if we trusted and loved him, we would rejoice more that he gave us the sense of sight than if we possessed the wold world. And the word of consolation he speaks to me through the Gospel ought to give me higher joy than the favor, money, wealth, and honor of the whole world. But that it is not so and ten thousand dollars can make people happier than all the grace and possessions of God, proves what kind of fruit we are, and what a distressing and horrible fall it is in which we lie. And yet we would not see nor realize it, if it were not revealed to us through the Law, and we would have to remain forever in it and be lost, if we were not again helped out of it through Christ. Therefore the Law and the Gospel are given to the end that we may learn to know both how guilty we are and to what we should again return.
Martin Luther, Second Church Postil for the Eighteenth Sunday after Trinity (Matthew 22:34-46)