2026 — Lectionary primer

The Thirteenth Sunday after Trinity

The Good Samaritan

One-year lectionary · 2 Chronicles 28:8–15 · Galatians 3:15–22 · Luke 10:23–37

The Thirteenth Sunday after Trinity continues the third of Luther Reed’s four cycles within the green Time of the Church, the stretch from the Twelfth Sunday through the Eighteenth that takes up the new life of righteousness. Today that life is named mercy. A lawyer rises to test Jesus with a question he thinks he can answer, “What must I do to inherit eternal life?,” and the Lord answers with the Parable of the Good Samaritan, drawn from Israel’s own history and pointing past every human helper to Christ Himself, who came into enemy country to bind the wounds of the half dead.

Lectionary Primer PDF

The shape of the service

Introit. Psalm 74 — “Why have You cast us off forever?” The congregation enters as the afflicted flock, pleading that God remember His own and let the poor and needy praise His name.

Gradual and Verse. Psalm 77 confesses, “You are the God who works wonders,” who redeemed the children of Jacob; the Verse from Psalm 88 cries out day and night before the God of salvation.

Color and Preface. The paraments are green, the standard color of the Time of the Church, and the Common Proper Preface introduces the Sanctus.

Theme of the Day. The Law asks, “What must I do?,” and can only pass by the dying; mercy comes in a despised stranger, the picture of Christ, who found us half dead and carried us home.

The readings at a glance

Old Testament

2 Chronicles 28:8–15

During the reign of wicked King Ahaz, God hands Judah over to the northern army of Israel, who carry off two hundred thousand of their own kin, women, sons, and daughters, as plunder to Samaria. To enslave one’s brothers (’achehem) was a flagrant breach of the covenant. As the victors approach the city, a prophet named Oded, whose name means “Restorer,” goes out to meet them. He grants that God was angry with Judah, yet he charges that the army has slaughtered in a rage reaching to heaven and now means to enslave its own brothers and sisters. The northerners, he insists, carry guilt (’ashmah) of their own before God; let them release the captives, lest the burning anger (charon aph) of the Lord fall on Samaria.

Astonishingly, four named chiefs of Ephraim rise, block the army, and the soldiers drop the spoil. Then the designated men perform five acts of mercy on the captives: they clothe them, give them sandals, feed them and give them drink, anoint their wounds with oil, and set the feeble on donkeys, and they bring them to Jericho, the city of palms. Centuries later the Lord Jesus would take up this very history and make it the frame of His parable.

Epistle

Galatians 3:15–22

Paul argues from the courtroom. A human will, once ratified (kekyromenen), can neither be annulled nor amended; how much more the covenant (diatheke) God sealed with Abraham. The promise, Paul notes, was spoken to Abraham and to his “Seed,” singular (sperma), not “seeds,” and that one Seed is Christ, so the whole inheritance narrows to Him before it opens to all who are baptized into Him. The Law, arriving four hundred and thirty years later, cannot annul (akyroi) a promise God had already ratified, nor turn a free gift into a wage, for God “graciously gave” (kecharistai) the inheritance to Abraham.

Why the Law, then? It was added because of transgressions, a temporary measure “until the Seed should come,” handed down through angels by a mediator, while the promise came straight from the one God’s mouth. The Law could not make alive (zoopoiesai); instead Scripture “locked up” (synekleisen) the whole world under sin, sealing every exit, so that the one way out would be the promise received by faith in Jesus Christ. The prison of the Law drives us outside ourselves to the Seed who alone gives life.

Holy Gospel

Luke 10:23–37

Jesus first blesses His disciples’ eyes, for prophets and kings longed to see what they now see. Then a lawyer (nomikos) stands to test Him (ekpeirazon): “What must I do to inherit eternal life?” The question contradicts itself, since an inheritance is received as a son, never earned as a wage. Sent back to the Law, the lawyer wants to justify himself (dikaiosai heauton) and so asks who his neighbor (plesion) is. Jesus answers with a story. A man going down the steep, bandit-ridden road from Jerusalem to Jericho falls among robbers who strip and beat him and leave him half dead (hemithane). A priest and a Levite, the very guardians of the Law, see him and pass by on the other side, guarding their ritual purity; the Law can diagnose the dying man, yet it cannot rescue him.

Then a Samaritan, the despised outsider, draws near, and at the sight his heart is wrenched with compassion (esplangchnisthe), the same gut-deep mercy Luke gives the father of the prodigal. He binds the wounds, pours on oil and wine, sets the man on his own animal, brings him to an inn, and pays two denarii with a promise to cover whatever more is owed. “Which of these proved neighbor?” The lawyer cannot even say the hated name: “the one who showed mercy.” We are the man in the ditch, and the Law passed us by without rescue; Christ is the Samaritan who came into our enemy country, poured the oil and wine of His mercy into our wounds, and carried us home. “Go and do likewise” is the fruit of that rescue, never its price.

The hymns and their stories

Opening Hymn

“Creator Spirit, By Whose Aid” · LSB 500

This hymn is John Dryden’s paraphrase of the ancient Veni Creator Spiritus, a ninth- or tenth-century Latin invocation of the Holy Spirit so esteemed that it ranked second only to the Te Deum among Latin hymns. Dryden (1631–1700), poet laureate and a major figure in English letters, made the paraphrase after his own conversion to Rome and published it in his 1693 Examen Poeticum, yet John Wesley carried this Catholic rendering into Methodist song, and from there it passed across the confessions into wide use. Dryden cast it as an irregular poem of thirty-nine lines rather than a hymn, so later editors had to reshape it for singing; our hymnal stitches together stanzas 1, 2, 6, and 7 with the opening of stanza 3. The third stanza gathers the Spirit’s sevenfold gifts from Isaiah 11: wisdom, understanding, counsel, might, knowledge, fear of the Lord, and piety.

Hymn of the Day

“Son of God, Eternal Savior” · LSB 842

Somerset Corry Lowry (1855–1932) wrote this text in 1893 while serving as vicar of North Holmwood in Surrey, and it carries an unusual blend of high Christology and social conscience. He meant it as a “socially minded” hymn: it first appeared in the journal Goodwill in 1894 under the heading “Christian Brotherhood. Members one of another,” and an 1895 hymnal of the Christian Social Union, an Anglican body founded to address the needs of the poor, soon adopted it. The text leans on our Lord’s high priestly prayer in John 17, “that they may be one even as We are one,” and presses the same point: those who are redeemed are members one of another. Our hymnal uses four of Lowry’s six stanzas, each turning between praise and petition.

Hymn

“Come Down, O Love Divine” · LSB 501

This hymn began as an Italian lauda, a popular song of devotion, written by Bianco da Siena (ca. 1350–1434), who in 1367 joined the Jesuati, an order of unordained men given to preaching and works of mercy. His “Discendi, amor santo” belongs to the same Franciscan stream of spiritual song that flowed from Saint Francis’s “Canticle of the Sun.” Richard Littledale, a leader of the Oxford Movement who translated hymns from seven languages, put it into English in 1867. Even so, the hymn lay largely unused until Percy Dearmer chose it for the 1906 English Hymnal, where Ralph Vaughan Williams, the music editor, wrote it a new melody and named the tune DOWN AMPNEY for the Gloucestershire village of his birth.

Closing Hymn

“O God of Mercy, God of Might” · LSB 852

Godfrey Thring (1823–1903) published this text in his 1880 Church of England Hymn Book, opening it with a line lifted straight from John Keble’s 1827 Christian Year, a fountainhead of the Oxford Movement that Thring knew well. A wealthy clergyman and landholder, Thring lived the hymn he wrote, spending his own time and money on the schools and churches of the two Somerset villages by his estate. He first set it under the Offertory, headed with the close of the Good Samaritan, “Go and do thou likewise,” and stanza 5 prays that “in sickness, sorrow, want, or care” we may share each other’s burdens, the very charge of Galatians 6. One Lutheran change is worth noting: where Thring closed the final stanza with “all those who give to Thee,” Lutheran hymnals read “all those who live in Thee,” lest the line sound like works righteousness.