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December 20, 2026 · Fourth Sunday of Advent · No sign-in needed

December 20 Sunday Sermon Passages — Advent 4: David's house, Mary's yes, a promise not finished

These five readings don't move in one direction this week: 2 Samuel and Psalm 89 look backward to a promise made to David, while Luke's gospel and the Magnificat announce that promise taking a new, unexpected shape. Romans closes the loop with a doxology about a mystery now revealed. Scan the five short profiles below, then read the one you choose in full.

Which passage will you preach this Sunday?

These are passages a sermon can take on this Sunday. The order is not a ranking — read the introductions, then tap the one that draws you and it opens below.

GospelLuke 1:26-38The angel's impossible wordIf you choose this passage, the sermon becomes a sermon about how faith can answer an announcement nobody can verify in advance.Who it suits Fits a congregation that needs permission to say yes to God before they understand how it will work.Point of caution Don't turn Mary's one-time, specific yes into a generic lesson about obedience.Read this one ↓EpistleRomans 16:25-27A mystery kept quiet, now spokenIf you choose this passage, the sermon becomes a sermon about a long-hidden plan of God finally spoken into the open.Who it suits Fits a congregation closing out a long season together, ready to hear that God's timing has been the plan all along.Point of caution Don't use three verses as an excuse to re-preach the whole letter to the Romans.Read this one ↓Old Testament2 Samuel 7:1-11, 16A house God builds insteadIf you choose this passage, the sermon becomes a sermon about the difference between the house we want to build for God and the house God insists on building for us.Who it suits Fits a congregation in a season of planning or building, needing to hear that God's promises don't wait on their projects.Point of caution Don't let house become only a sermon about church buildings and budgets.Read this one ↓OccasionLuke 1:47-55Mary's song of the world turnedIf you choose this passage, the sermon becomes a sermon about what it sounds like when an ordinary woman sings that God turns the world upside down.Who it suits Fits a congregation that needs good news stated as reversal, not just comfort.Point of caution Don't let the song's political edge get spiritualized into only private humility.the canticle the RCL allows in place of this Sunday’s psalmRead this one ↓OccasionPsalm 89:1-4, 19-26Singing a promise that hasn't finished happeningIf you choose this passage, the sermon becomes a sermon about holding on to a promise that still looks unfinished.Who it suits Fits a congregation carrying disappointment this Advent, not needing the story resolved yet.Point of caution This reading stops before the psalm's lament, so don't preach it as pure celebration.the psalm the RCL appoints for this SundayRead this one ↓

Passages follow the Revised Common Lectionary (RCL); “Occasion” passages are options we add for the season. If your church follows its own calendar or preaches through a book, carry on as you were.

Gospel

Luke 1:26-38 The angel's impossible word

If you choose this passage, the sermon becomes a sermon about how faith can answer an announcement nobody can verify in advance.

The passage at a glance

  1. Gabriel comes to a young, unremarkable woman in an unremarkable town and tells her she will bear a son.
  2. Mary asks how, not whether, and the angel points her to the Spirit's power and to Elizabeth's own impossible pregnancy.
  3. Mary answers with consent, not full understanding, and the angel leaves.

Ways the sermon can go

An ordinary person carries an extraordinary promise

Preach the obscurity of Nazareth and of Mary herself as the shape God chooses; it costs you the easy move of making Mary a model of extraordinary piety.

The question Mary asks

Build the sermon around verse 34's 'how' as an honest believer's question, not doubt; this risks flattening the mystery into a solvable puzzle if you push it too far.

Nothing is impossible

Preach verse 37 as the hinge of the whole text, tying this birth to other impossible promises in Scripture; it costs you time you'd otherwise give to Mary herself.

Where sermons commonly slip

Flattening Mary into a moral example

Treating her only as the model of saying yes to God skips over the specific, singular nature of what she was asked to carry.

Settling theological debates mid-sermon

The virginal conception touches real doctrinal differences across traditions; resolving them with confidence overstates what the text itself argues for.

Three things to check on the recording afterwards

  1. Did the sermon name what, specifically, Mary was asked to risk, or did it stay at the level of general obedience?
  2. How many times did the sermon use the word impossible, and did it connect that word back to verse 37?
  3. Did the preacher address the listener's own unanswered how questions, or only Mary's?

One application for this week

Write down one thing you believe God has told you to do that you still don't understand how will work, and tell one trusted person about it before Sunday.

Recent research on this passage

  • Daniel P. Mueller (2023). Helping the Expectant Mother Elizabeth: The Nature and Purpose of Mary's Travel in Luke 1:39. ˜The œCatholic Biblical quarterly. Read the article

    According to the abstract, when read against the background of first-century women's travel and childbirth customs, Mary's journey to Elizabeth looks like practical help offered during the final months of pregnancy rather than simply travel to confirm the angel's words.

    Does reading Mary's response as practical help to Elizabeth change how you preach her yes in verse 38 as active, embodied obedience rather than private acceptance?

↑ Which passage will you preach this Sunday?

Epistle

Romans 16:25-27 A mystery kept quiet, now spoken

If you choose this passage, the sermon becomes a sermon about a long-hidden plan of God finally spoken into the open.

The passage at a glance

  1. Paul closes his long letter with praise instead of more instruction.
  2. He names God as the one able to strengthen the readers through the gospel he preaches, a message once hidden and now revealed.
  3. He traces that revealing to the prophets and to God's own command, and ends by giving God glory through Jesus Christ.

Ways the sermon can go

The hidden made public

Preach the mystery kept secret for long ages as the heartbeat of Advent itself; it costs you needing to explain what Paul means by mystery without sounding like a conspiracy.

A doxology as the last word

Treat the passage as what it formally is, praise rather than argument, and ask what it means to end a hard conversation with worship; it risks losing any link to Romans if you don't tie it back.

Strengthened by what was preached

Build on verse 25's claim that the gospel itself strengthens; it's a shorter, more pastoral route but gives you less material for a full Advent sermon.

Where sermons commonly slip

Preaching all of Romans in one sitting

Because this is the letter's closing doxology, it's tempting to summarize the entire epistle instead of staying with these three verses.

Letting manuscript questions take over

This doxology sits in different places in different manuscripts, which can pull the sermon into a textual-criticism lecture no one asked for.

Three things to check on the recording afterwards

  1. Did the sermon stay within Romans 16:25-27, or did it spend more time summarizing earlier chapters of Romans?
  2. Did the preacher explain what mystery means in Paul's vocabulary, and how many times was that word used?
  3. Did the sermon end, like the text does, by pointing to God's glory rather than to an application point?

One application for this week

Write one sentence naming something about God's plan you only understood looking backward, and share it with your family before Sunday.

↑ Which passage will you preach this Sunday?

Old Testament

2 Samuel 7:1-11, 16 A house God builds instead

If you choose this passage, the sermon becomes a sermon about the difference between the house we want to build for God and the house God insists on building for us.

The passage at a glance

  1. David, settled in his palace, wants to build God a house, and Nathan first says yes.
  2. That night God corrects Nathan: God has never asked for a house, and instead promises to build David a house, a line of descendants.
  3. The promise is unconditional and lasting, reaching beyond David's own lifetime.

Ways the sermon can go

David's good idea, corrected

Preach the reversal, a godly impulse that still needed to be redirected; it costs you some of the comfort of a straightforwardly approving story.

A promise with no expiration

Focus on verse 16's forever language and let the congregation sit with a promise that outlasts every one of David's successors; this raises how Christians read that forever, a real difference worth naming, not resolving.

Rest as the occasion for the promise

Notice this comes only after verse 1's rest from enemies, and ask what a settled, resting people do with their energy; a smaller-scope sermon, easy to preach but easy to under-develop.

Where sermons commonly slip

Collapsing the promise into building-fund language

The word house invites an easy jump to literal buildings and budgets that the text itself isn't making.

Resolving the messianic forever too quickly

How this promise connects to Christ is a real theological question across traditions; naming it is more honest than settling it in one sermon.

Three things to check on the recording afterwards

  1. Did the sermon name both David's plan and God's reversal of it, or only one side?
  2. How many times did the sermon use the word house, and did it distinguish the temple sense from the dynasty sense?
  3. Did the sermon address how this promise relates to Christ, and did it acknowledge that traditions read that connection differently?

One application for this week

Find one plan you've already decided is for God's benefit, and ask someone who knows you well whether it's actually what's needed right now.

↑ Which passage will you preach this Sunday?

Occasion · the canticle the RCL allows in place of this Sunday’s psalm

Luke 1:47-55 Mary's song of the world turned

If you choose this passage, the sermon becomes a sermon about what it sounds like when an ordinary woman sings that God turns the world upside down.

The passage at a glance

  1. Mary responds to Elizabeth's greeting with a song of praise, starting with her own low estate being lifted.
  2. She widens the song to describe what God characteristically does: scattering the proud, bringing down rulers, lifting the humble, feeding the hungry, sending the rich away empty.
  3. She closes by tying this pattern to God's old promise to Abraham and his descendants.

Ways the sermon can go

A personal praise that becomes a public claim

Trace the move from my soul to he has scattered, one woman's experience read as the pattern of how God works; it costs you needing to handle the song's political language carefully.

Reversal as good news

Preach the specific pairs, proud and humble, rich and hungry, as what this God does, not just what this God feels; it risks sounding like only social commentary if not tied back to the incarnation.

A promise kept, not a new idea

Show how the song claims continuity with Abraham rather than announcing something new; a quieter angle, better for a congregation that already knows the song well.

Where sermons commonly slip

Turning the song into generic praise music

Because it's familiar as a hymn, it's easy to preach only its tone of joy and skip the specific, concrete reversals it names.

Choosing only a future or only a present reading

The song can be preached as pure eschatology or pure social ethics; the text itself holds both without choosing.

Three things to check on the recording afterwards

  1. Did the sermon name the specific reversals in the song, or only its general tone of praise?
  2. How many times did the sermon connect the song back to Mary's own circumstances before generalizing it?
  3. Did the sermon address both a future and a present sense of these reversals, or settle for one?

One application for this week

Name one person or group in your own circle who would count as the humble in this song, and do one specific thing for them this week.

↑ Which passage will you preach this Sunday?

Occasion · the psalm the RCL appoints for this Sunday

Psalm 89:1-4, 19-26 Singing a promise that hasn't finished happening

If you choose this passage, the sermon becomes a sermon about holding on to a promise that still looks unfinished.

The passage at a glance

  1. The psalm opens by committing to sing of God's steadfast love and faithfulness forever.
  2. It recalls God's own promise to David, naming him God's chosen servant and declaring an everlasting covenant.
  3. God's faithfulness and steadfast love are promised to stay with David's line, even naming God as a father to that king.

Ways the sermon can go

Covenant language before the complaint

Preach these verses as half of a larger psalm, naming that the rest of Psalm 89 turns to lament over a broken-looking promise; it costs you deciding whether to mention that other half at all.

Steadfast love and faithfulness as a pair

Follow the repeated pairing of these two words through the verses and ask what it means for God to be described by both at once; a focused word study rather than a narrative sermon.

A father to the king

Preach verse 26's language of calling God Father as it's claimed by the Davidic king, and let it echo forward; this raises a Christological question worth naming rather than deciding for the congregation.

Where sermons commonly slip

Reading only the praise half of the psalm

The lectionary selection stops before the psalm's long complaint, which can make the king's situation sound more secure than the full psalm admits.

Leaving the David connection unnamed

Without naming 2 Samuel 7 directly, the psalm's references to God's servant and covenant can float free of their original referent.

Three things to check on the recording afterwards

  1. Did the sermon mention that Psalm 89 continues past verse 26 into lament, or treat these verses as the whole psalm?
  2. How many times did the sermon name both of the paired words, steadfast love and faithfulness?
  3. Did the sermon connect this psalm back to the 2 Samuel 7 promise, or treat it as a free-standing text?

One application for this week

Write down one promise from God you're still waiting to see finished, and read it out loud to yourself once a day this week.

Recent research on this passage

  • Robert E. Coleman (2023). Structure as a Clue to Rhetoric: Discourse Analysis of Psalm 89:1–53. Hebrew studies. Read the article

    According to the abstract, a close discourse analysis of the whole psalm's structure shows that its final line in verse 53 functions as a hinge, suggesting the psalm insists God still deserves praise even though the Davidic covenant appears to have been broken.

    If the praise in these opening verses is meant to be heard alongside the psalm's own later complaint, how does that change the tone you give the covenant language in verses 19 through 26?

  • S. D. Ellison (2025). Singing Steadfast Love and Faithfulness: The Messianic Significance of Ps 89. Old Testament Essays. Read the article

    This article argues that Psalm 89 is best read as pointing toward a future messianic hope, based on its heavy dependence on 2 Samuel 7, its unresolved ending, and its influence on later messianic expectation.

    Does treating this psalm as pointing toward a still-unresolved messianic hope change how directly you connect verses 19 through 26 to Christ, versus leaving that connection implicit?

↑ Which passage will you preach this Sunday?

From recent (2023 onward) scholarly articles we chose only those likely to help a preacher read this passage. Citations come from OpenAlex and Crossref and each DOI was checked; summaries paraphrase the abstract alone. A paraphrased abstract cannot stand in for the argument. Read the article itself before you use it in a sermon. We did not check journal rank or the rigor of peer review — articles were chosen only for relevance to the passage.

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