Text: Matthew 22:34-46
Our Lutheran Book of Concord says this near the end,
The distinction between the Law and the Gospel is a particularly brilliant light. It serves the purpose of…properly explaining and understanding the Scriptures…We must guard this distinction with special care, so that these two doctrines may not be mixed with each other…When that happens, Christ’s merit is hidden and troubled consciences are robbed of comfort, which they otherwise have in the Holy Gospel when it is preached genuinely and purely.
Today we have another text in which the distinction between the Law and the Gospel brought up and taught to us by our Lord. When questioned by the Pharisees about the Law, Jesus explained the holy and righteous will of God, the actions that all the Commandments are pointed towards: love of God and love of neighbor. As Jesus said, “On these two commandments depend all the Law and the Prophets.” Our Lord went on to explain the Gospel: that He is both the promised Son of David and David’s Lord, his Redeemer.
The thing about the Law and the Gospel is that you can’t have one without the other. These two teachings must remain and be preached in the Church until Christ returns. If you take away the Law, the Gospel gets turned into a new Law. If you take away the Gospel, then you doom people to eternal condemnation. Therefore, our Lord rightly teaches both the Law and the Gospel in this text. Today we confess that in the Law we are taught God’s holy and righteous will and in the Gospel, we are taught what Christ has done for us.
The text this week takes place during Holy Week, around the Tuesday. Sunday was the Triumphal Entry, and much of the first part of the week Jesus spent teaching in the temple. While He was teaching, the challengers just kept coming. First, it was the chief priests with the elders, then the Pharisees. Then came the Sadducees – who don’t believe in the Resurrection. Then came the Pharisees, again, in our text. Their plan? Get Jesus to trip up and incriminate Himself. So, the text begins, “When the Pharisees heard that [Jesus] had silenced the Sadducees, they gathered together. And one of them, a lawyer, asked Him a question to test him. ‘Teacher, which is the great commandment in the Law?‘”
This was an on-going discussion for the Pharisees. They and their scribes and the rabbis would argue back and forth about which is the greatest commandment. If Jesus said something different than the others generally responded, then they got Him. Jesus won’t be caught in their game. He cuts through the muck and goes right to the heart, as only the author of the Law could. He cites from Deuteronomy 6, “You shall love the Lord your God with all your heart and with all your soul and with all your mind.” As Jesus said, this is the first Commandment. We are to fear, love and trust in God above all things. But, a second goes with it – again from the Old Testament – “You shall love your neighbor as yourself.”
These two commandments are the sum of the whole Law. In fact, all Scripture is directed to this end: that we love God and love each other. Sounds pretty simple. But, remember, Jesus is preaching the Law here. He’s speaking to the Pharisees, of whom we’ve had examples over the last number of Sundays: The Pharisee and the Tax Collector or the parable about humility from last week. The Pharisees were known and loved for their outward piety. But in their hearts, they did not love their neighbors and, therefore, did not truly love God. And neither do we.
The great commandment is that we love God with all that we have and are, but do we? To use an illustration from Luther, we would rather have a gold coin in our pocket that we could use to feed our appetites than hear the whole and pure Gospel read. God’s holy and righteous will is that we love our neighbor as ourselves, yet so often – for all we care – our neighbor can take a hike. Like the priest and Levite, we pass by while the Samaritan suffers. Even if we don’t pass by physically, we hold both contempt and apathy in our hearts.
The will of God is given to us in the Law: we are to love Him above all things and our neighbor as ourselves. This is good, right, and true. Jesus says, “On these two commandments depend all the Law and the Prophets.” And, I think that’s devastating. Because, the whole of Scripture directs us to those two things, and condemns for our failure to do them. This is what the Law does: it shows us what we are to do, and it condemns us when we don’t. Therefore, the Law must not be preached alone. But, after the Law, the Gospel. This is what Jesus does. He has just taught the right understanding of the Law, which is both good and hard for us to hear. In it we hear what we are supposed to do, but that which we fail to do. What we need now is the Gospel.
Jesus preaches the Gospel here in an odd way, by talking about King David. King David, inspired by the Holy Spirit, sang Psalm 110, which says, “The Lord said to my Lord: ‘Sit at My right hand, until I make Your enemies Your footstool.’“ We know from elsewhere in Scripture that the Messiah would come from the David’s bloodline. This is shown in the genealogies of Matthew and Luke. But, here David – and Jesus by citing it – says that not only would the Messiah be his descendent but also his Lord. And, by “Lord,” he also means “Redeemer.” To redeem someone, in the Scriptural understanding, is to buy someone back from something else. In David’s case and ours, Jesus is our Redeemer and Lord, for He has bought us back from sin, death, and the devil.
“Not with gold or silver, but with His holy, precious blood and with His innocent suffering and death.” Jesus is David’s son and Lord, and ours, by purchasing us out of death by His own suffering and death in our place. But, before He died for us, He kept God’s Law for us. First, He did truly fear, love, and trust in God above all things. Second, He perfectly loved the whole world by dying for the whole world on the cross. By these things Jesus both fulfilled God’s Law in our place, and secured for us the forgiveness of our sins. This is the distinction between the Law and the Gospel: the Law shows us God’s will for us and condemns transgressions against it, the Gospel shows what us Jesus did for us and gives to us.
But, if we cannot do the Law or obtain merit before God by our works, why is the Law still preached? Well, because the Commandments remain holy and righteous and good. They are God’s will for us as Christians. Besides, it is good to not steal or kill or commit adultery. Sometimes we need the reminder. When Jesus was questioned about the Law, He didn’t say we should put it on the shelf and talk about something us. Rather, He taught the Law and then the Gospel. The Gospel is different from the Law in another way, too. The Law doesn’t actually give us the ability to keep it, but the Gospel does. The Gospel doesn’t just tell us we are forgiven, but through being preached it actually does it. The Gospel is the instrument through which the Spirit creates and sustains faith, and through which we are equipped and led to do God’s will, the Commandments.
We won’t keep them perfectly, since we are in the flesh. Now that Christ has atoned for our sins, God our Father no longer looks down at our failures as an angry judge, but, to use Luther again, God looks at us through His fingers. He sees only the righteousness of His own dear Son. For our part, as God’s dear children, we seek to do the will of our Father. The Lutheran Confessions say that the distinction between the Law and the Gospel is a brilliant light and the way to rightly understand Scripture. In our text, Jesus teaches both the Law and the Gospel. In the Law, He shows that God’s holy will is that we love both Him and our neighbor. In the Gospel, Jesus showed that He is both David’s Son and Lord, who has redeemed us all by His perfect life and death.
 Paul Timothy McCain, ed., Concordia: The Lutheran Confessions (St. Louis, MO: Concordia Publishing House, 2005), 552.
 The Holy Bible: English Standard Version (Wheaton: Standard Bible Society, 2016), Mt 22:40.
 Matt. 22:34-36.
 Matt. 22:37.
 Matt. 22:39.
 Ps. 110:1.