2026 — Lectionary primer

The First Sunday after Trinity

The Call to the Kingdom of Grace

One-year lectionary · Genesis 15:1–6 · 1 John 4:16–21 · Luke 16:19–31

With Holy Trinity Sunday behind us, the Church enters Trinitytide, the long green season stretching through autumn. Liturgical scholar Luther Reed observes that Trinity I–V focuses specifically on “the call to the kingdom of grace.” The Introits for the first eighteen Sundays after Trinity proceed in canonical order through the Psalter, an ancient practice preserving the Church’s continuous engagement with Israel’s prayer book. Green vestments throughout the season signify growth: the steady, patient work of the Holy Spirit maturing the faith planted at Baptism and nourished every Sunday at the Lord’s Table.

Lectionary Primer PDF

The shape of the service

The Season of Trinity

Trinitytide is the longest season of the Church Year, stretching from the Sunday after Holy Trinity through the last Sunday before Advent, as many as twenty-seven Sundays in some years. Where the first half of the year (Advent through Pentecost) proclaims what God has done in the history of salvation, Trinitytide applies that salvation to the life of the Church and the individual Christian.

Luther Reed divides the season into four cycles: Trinity I–V (the call to the kingdom of grace), Trinity VI–XII (the law and the gospel), Trinity XIII–XVIII (faith and works), and Trinity XIX–XXVII (the last things and the return of Christ). During Trinity 1–8, the Daily Offices carry seasonal responses: Matins appoints “The Lord has gathered us in the true faith,” and Morning Prayer appoints “The Lord has sanctified us in the true faith.” The Common Proper Preface is used throughout the season. The green vestments worn from Trinity through November signify growth: the Holy Spirit’s patient, quiet work of maturing the faith planted at Baptism.

The readings at a glance

Old Testament

Genesis 15:1–6

This is the bedrock of the biblical doctrine of justification. God opens with the first instance in Scripture of His personal reassurance to an individual: ’al tira’, “Do not fear,” pairing it immediately with the promise magen, “I am your shield.” Abram’s crisis is the apparent collapse of God’s covenant: he remains childless, and by the custom of the age he assumes a household servant must become his heir. God answers by drawing him outside and commanding him to count the stars, promising that his zera’, “offspring” or “seed,” will be as numerous. That collective noun, as Paul explains in Galatians 3:16, is fulfilled first in the singular Seed, Jesus Christ, and then in all who are united to Him by faith and Baptism.

The climax of verse 6 is the most important sentence in the Old Testament regarding salvation. Abram believed: the Hebrew verb is he’emin, the Hiphil form of ’aman, the root of “Amen,” meaning to declare God’s Word utterly reliable and trustworthy. God then chashab, credited it to him, an accounting term meaning to reckon something to an account. What was reckoned was tsedaqah, righteousness. Paul quotes this verse in Romans 4 to demonstrate that justification by grace through faith was God’s way of salvation centuries before circumcision or the Law of Moses. Abraham’s faith is not heroic moral effort; it is the empty hand that receives what God gives.

Epistle

1 John 4:16–21

John opens with a double perfect indicative: egnōkamen kai pepistēukamen, “we have come to know and to believe,” emphasizing that this knowledge of God’s love is a completed reality with permanent, ongoing effect. His declaration “God is love” (ho theos agapē estin) is not a sentimental abstraction; love is God’s very essence, revealed definitively and historically at the cross.

The Gospel climax comes in verse 18: perfect love expels phobos, fear, specifically the fear of kolasis, punishment, the same word used in Matthew 25:46 for eternal condemnation. The terms phobos, kolasis, and the verb for “casts out” are all hapax legomena in John’s Epistles, marking the verse as uniquely emphatic. The theological heart of the passage is verse 19: “We love, because He first loved us.” The aorist ēgapēsen points to a single, completed, historical moment, the cross, as the source of all Christian love. John then refuses to separate love for the invisible God from love for the visible brother: to claim the former while practicing hatred of the latter is, in John’s blunt Greek, to be a pseustēs, a liar.

Holy Gospel

Luke 16:19–31

This is the only story Jesus tells in which a character bears a personal name. Lazaros is the Greek form of the Hebrew Eleazar, meaning “God helps,” a name of magnificent irony for a man who appears to be entirely abandoned. He is ebeblēto, a passive participle: he has been cast at the gate, too weak even to move himself, lying before a man dressed in porphyran (purple) and bysskon (fine linen), feasting lamprōs (sumptuously) every day.

Death reverses everything. Lazarus is carried by angels to the bosom of Abraham, the seat of honor at the messianic banquet, while the rich man wakes in basanos, torment, literally the torture used in antiquity to extract confessions. The chasm between them is esteriktai, fixed, a perfect passive: death seals one’s eternal destiny, and no crossing is possible in either direction. The parable’s final word is its sharpest: “If they do not hear Moses and the Prophets, not even if someone were to rise (anastē) out of the dead will they be persuaded.” Anastē is the precise word for resurrection. The Pharisees who refused to hear Moses and the Prophets would soon refuse to believe the risen Christ himself.

The hymns and their stories

Opening Hymn

“Come, Thou Almighty King” · LSB 905

This hymn first appeared anonymously around 1757–60, bound with editions of George Whitefield’s Collection of Hymns for Social Worship. Its original second stanza was a nearly word-for-word parody of the British national anthem, and in some places the hymn was sung to the tune of “God Save the King.” Once that militaristic stanza fell from use, the remaining four stanzas formed a perfect Trinitarian structure: the first three address the Father, the incarnate Son, and the Holy Spirit in turn, while the fourth gathers all three into eternal praise of the blessed Unity. The text was written deliberately during an era of rampant Rationalism and budding Unitarianism to ground singers firmly in orthodox Trinitarian faith. The authorship remains unidentified; though long suspected to be Charles Wesley’s, the Wesley poetry editors have never accepted it. The tune ITALIAN HYMN was composed by Felice Giardini of Turin, published around 1762.

Hymn of the Day

“To God the Holy Spirit Let Us Pray” · LSB 768

The first stanza of this hymn is an anonymous medieval German Leise, a spiritual song ending with Kyrieleis, a contraction of “Lord, have mercy.” It was already beloved by the thirteenth century: the Franciscan preacher Berthold of Regensburg (ca. 1210–72) called it “a useful and dear hymn, a happy find.” Martin Luther loved it so much that he cited it in his 1523 Latin Mass as a model for new hymn writers, then expanded it with three original stanzas in 1524. In his 1526 German Mass, Luther directed that it be sung immediately before the Holy Gospel, functioning as an epiclesis, an invocation of the Spirit so the congregation might receive the forgiveness proclaimed in the reading. It became one of the ten most frequently cited hymns in Lutheran church orders from 1523 to 1750. The pentatonic melody is likely as ancient as the first stanza and inspired organ settings by Buxtehude and cantata uses by Bach.

Hymn

“Come Down, O Love Divine” · LSB 501

The original Italian text (Discendi, amor santo) was written by Bianco da Siena (ca. 1350–1434), a member of the Jesuati, a community of unordained laymen devoted to preaching and works of mercy inspired by the spirituality of St. Francis. Ninety-two of Bianco’s laudi survived in a Vatican manuscript but remained unpublished until 1851. Richard F. Littledale translated it into English in 1867, but the hymn languished in near-obscurity for another forty years. Its fortunes changed entirely when Percy Dearmer selected it for The English Hymnal (1906), whose musical editor, Ralph Vaughan Williams, composed a new setting specifically for the text. Vaughan Williams named the resulting tune DOWN AMPNEY after the Gloucestershire village of his birth. It was this pairing of fourteenth-century Italian poetry with Vaughan Williams’s soaring twentieth-century music that gave the hymn its enduring place in the Church’s repertoire.

Closing Hymn

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

Written by Godfrey Thring (1823–1903) and first published in his Church of England Hymn Book (1880), this text was placed in the “Offertory” section with a superscription from Luke 10, linking it directly to the parable of the Good Samaritan, a fitting companion to today’s Gospel. Thring was not only a clergyman but also a landholder who donated generously to the churches and schools of his Somerset parishes, living out what he wrote. The opening phrase echoes a Communion hymn by John Keble from his 1827 Tractarian volume The Christian Year. Lutheran editors made one deliberate change to Thring’s original final stanza: his closing phrase “all those who give to Thee” was judged too suggestive of works-righteousness and was altered to “all those who live in Thee,” ensuring that even the hymn’s appeal for mercy-works flows from grace rather than earning it.