Biblical Text: Matthew 5:36-6:18 (Lectionary reading was Matthew 5:36-48, I extended it to take in the next section of the Sermon on the Mount as next week is Transfiguration and lent leaving the Sermon behind.)
We’ve been reading the Sermon on the Mount for most of the Epiphany season. The beatitudes as the entry; salt, light and a city on a hill as the purpose; you have heard, but I say as the doctrinal basis of the Kingdom. We’ve said that the Sermon functioned as a catechism for the early church. The one thing that Luther’s catechism could be faulted for – even recognized by the earliest Lutherans who attached the table of duties – is that is almost completely an expression of the faith which is believed (fides quae creditur) and ignores the practices of the faith which believes (fides qua). Jesus doesn’t neglect that in his sermon. That is why I extended the lectionary reading. Following his authoritative teaching of the 10 commandments, Jesus takes up charity/almsgiving, prayer and fasting. These are piety practices. Using Jesus words, how we practice righteousness.
The interesting thing about Jesus’ teaching is how free it is. He doesn’t mandate or limit piety practices. He assumes that we will have them and that they are necessary, but that we will live our own faith. What he is concerned about is that our piety practices are done with the correct heart. He is concerned that we do them to be connected to the Father instead of desiring the reaction of our neighbors. This is the difference between true piety and virtue signaling. Develop the first and you Father who sees in secret will reward; do the latter and you have received your reward.
The last movement of the sermon is to examine how the phrase that ends the doctrinal section “be perfect as your Father in Heaven is perfect” is fulfilled in Christ, and grows in us. The doctrine of the church can be summarized in a few minutes, the living of it takes a lifetime to master. And even then it is not us, but God who brings it to completion.
Worship Note: I have left in the recording two musical pieces. First between the OT and the Epistle readings our Choir sings a gorgeous piece. (I really need to get a better mic aimed there instead of simply ambient. I did raise the volume level slightly to compensate.) Then I left in our closing hymn, LSB 848, Lord, Whose Love through Humble Service which captures well I believe the force of the text. If we capture the vision of the doctrine taught, it empowers our lives. It also has one of the great tunes in the hymnal which is almost pure Americana from The Sacred Harp. If the American church adds nothing to the eschatological choir beyond these tunes, it will still have added something worthy.