Psalms 104:19 · Bible study
Psalms 104:19 Commentary: The Sun That Knows
Hebrew · 10 what the commentators say
Meaning in one sentence
Why does the psalmist say the sun 'knows' its setting? Explore the personification and God's appointed order in creation.
Research Summary
- Meaning: The moon marks seasons and festivals; the sun reliably sets at its appointed time, both serve God’s good order.
- Key words: מוֹעֲדִים (mo’adim), appointed times, festivals; יָדַע (yada), to know intimately, here of the sun’s ingrained obedience.
- Main debate: Whether the personification of the sun implies literal consciousness or is purely poetic, most agree it is vivid metaphor.
- Theological theme: Creation’s order reflects God’s wisdom and benevolence, countering the worship of celestial bodies.
- Best use: To inspire trust in God’s providence and to call believers to faithful obedience, echoing the sun’s simple reliability.
Translation Comparison
BSB Berean Standard Bible 2020
He made the moon to mark the seasons; the sun knows when to set.
WEB World English Bible 2000
He appointed the moon for seasons. The sun knows when to set.
KJV King James Version 1769
He appointed the moon for seasons: the sun knoweth his going down.
ASV American Standard Version 1901
He appointed the moon for seasons: The sun knoweth his going down.
YLT Young's Literal Translation 1898
He made the moon for seasons, The sun hath known his place of entrance.
Darby Darby Bible 1890
He made the moon for seasons: the sun knoweth its going down.
Douay-Rheims Douay-Rheims Bible 1899
Until his word came. The word of the Lord inflamed him.
Translations in other languages (10 available)
Hizo la luna para los tiempos: el sol conoce su ocaso.
Ele fez a lua para marcar os tempos, e o sol sobre seu poente.
Il a fait la lune pour marquer les temps;
Du hast den Mond gemacht, das Jahr darnach zu teilen; die Sonne weiß ihren Niedergang.
Hij heeft de maan gemaakt tot de gezette tijden, de zon weet haar ondergang.
Egli ha fatto la luna per le stagioni; il sole conosce il suo tramonto.
Uczynił miesiąc dla pewnych czasów, a słońce zna zachód swój.
доколе исполнилось слово Его: слово Господне испытало его.
你安置 月亮 為定節令；日頭 自知 沉落。
He made the moon for a sign of the divisions of the year; teaching the sun the time of its going down.
Verse in Context
Original Language (Biblical Hebrew)
Old Testament · Biblical Hebrew · Psalms 104:19
Source: STEPBible TAGNT/TEHB (CC-BY 4.0). Click or tap a morphology code to see the full parsing.
Scholars' Consensus
Commentators across traditions agree that this verse presents the moon and sun as God’s obedient servants, not independent deities. Adam Clarke notes that the psalmist counters heathen worship by showing these lights are creatures dependent on God. Barnes emphasizes the benevolence of the arrangement: the sun “knows” its going down as if conscious, never varying from its appointed time. Keil and Delitzsch observe that the poet follows the creation order, mentioning the moon first to lead into the picture of night. The word “seasons” (מוֹעֲדִים) carries the sense of appointed festivals and time-divisions, linking to Genesis 1:14. The verb “knows” (יָדַע) is a Qal perfect, indicating settled, ingrained knowledge. The sun’s reliability is a form of praise. Calvin sees the whole order of nature as a reflection of God’s fatherly care, giving stability to human life.
How settled is the interpretation?
Interpretive difficulty: Low
What is clear: The verse affirms that God sovereignly appointed the moon to mark seasons and that the sun reliably fulfills its daily setting, demonstrating the order and goodness of creation.
What Scholars Agree and Debate
| Topic | Agreed | Debated |
|---|---|---|
| Purpose of the moon | The moon was created by God to mark times and seasons, including religious festivals. | Some emphasize agricultural seasons (e.g., for planting), while others focus on the liturgical calendar (the set feasts of Israel). Both are present in the Hebrew term מוֹעֲדִים. |
| Personification of the sun | The description of the sun 'knowing' its going down is poetic language, not literal consciousness. | Some, like Barnes, read it as a vivid image of reliability; others (e.g., Gill) see a typological reference to Christ, the Sun of righteousness. The consensus is that the verse uses metaphor to highlight obedience. |
| Anti-idolatry intent | The psalmist shows sun and moon as creatures, countering the worship of them as gods. | Whether this is the primary point or incidental to the creation hymn. Adam Clarke stresses it as a polemic; Matthew Henry treats it more as a general statement of divine sovereignty. |
| Relation to Genesis 1 | The verse alludes to the fourth day of creation (Genesis 1:14-18). | Some commentators (Keil & Delitzsch) see a strict creation-order pattern; others (Calvin) view the psalm as freely drawing on creation themes without forcing a day-by-day scheme. |
Historical & Cultural Context
Psalm 104 is a creation hymn that closely follows Genesis 1. This verse corresponds to the fourth day, when God placed lights in the sky. In the ancient Near East, Egypt worshiped Ra, and Canaan revered Shemesh (the sun) and Yarikh (the moon) as gods. The psalmist deliberately strips them of deity: they are creatures that obey their Creator. The word מועדים (mo'adim) is the same term used for Israel’s appointed feasts (Leviticus 23). The moon regulated the calendar for these festivals, a point Barnes underscores by noting that moon phases also indicated the week, facilitating religious observance. The sun “knowing” its going down is more than mechanical motion; it fulfills its role as though with understanding. This personification is typical of Hebrew poetry (compare Psalm 19:5-6, where the sun rejoices). The Cambridge Bible for Schools and Colleges notes that sunset is mentioned to introduce the night scene in verse 20ff. The verse thus completes the day-four theme and transitions into the rhythm of day and night. Barnes calls the whole arrangement “one of benevolence,” promoting the comfort of man and beast.
Textual Notes
The consulted sources note no significant textual variants for Psalm 104:19. The Hebrew text is stable across manuscripts, and the verse reads uniformly in the Masoretic tradition. The main interpretive questions are lexical and theological, not text-critical.
Reception History
Early Jewish readers, as seen in the Targum, understood this verse to affirm that the moon was set for the calculation of festivals. In the Christian tradition, Basil of Caesarea and Augustine used the verse to argue that the heavenly bodies are not divine but serve God’s purposes. Medieval exegetes often allegorized the moon as the Church, receiving light from Christ the Sun, a reading Gill extends in his commentary. Reformers like Calvin emphasized the created order as a demonstration of God’s fatherly care. Modern scholarship, building on these earlier insights, focuses on the psalm’s creation theology and its function as a counter to pagan nature worship. Across eras, the verse has been read as an invitation to trust the steady rhythm God has built into the world.
Preaching This Verse
Three-point outline
- God Appoints. The moon is made for seasons, showing intentional design. This is not chance, but purposeful creation (Genesis 1:14).
- God Commands. The sun “knows” its setting, obeying faithfully. Its reliability reflects the Creator’s trustworthiness.
- God Provides. The rhythm of night and day sustains both people and animals. The sun’s setting is the hinge that brings rest for man and activity for the wild beasts (verses 20-23).
Five-point outline
- Creature, not Creator. The moon and sun are made things, not gods. This challenges our culture’s tendency to worship creation (Deuteronomy 4:19).
- Appointed for Time. The moon marks months and festivals. God gives structure to life, helping us remember and celebrate.
- Knowledge from Obedience. The sun “knows” because it does what it was made to do. True knowledge in Scripture often involves faithful action.
- Order That Serves All. The sun’s setting brings relief to man at the end of work and activates the animals of the night. God’s order is inclusive.
- Invitation to Praise. If the sun and moon obey without question, how much more should we, made in God’s image, offer thanks.
Illustration hooks
- A father’s schedule: A parent sets mealtimes and bedtimes for the children. The children don’t just happen, they are arranged for the good of the family. The moon is like that: God set it to mark our weeks and seasons.
- The sunset as clock: We set our watches by the sun. It never arrives early or late. This dependability is a quiet sermon about the faithfulness of God.
- A new moon festival: In many cultures, the new moon still marks the start of a month. Imagine watching the thin crescent and remembering that God appointed that sign.
Questions your congregation is asking
- Does the Bible literally think the sun has a mind? What does “knows” mean?
- Why does the psalm mention the moon before the sun if the sun is brighter? (The picture of night comes first.)
- How does this verse help me trust God when my life feels chaotic? (The same God who orders the heavens can order my days.)
Leading a Discussion
Psalm 104 is a praise song that sees God’s hand in every part of creation. This verse focuses on the moon and sun, two lights that ancient people often worshiped. The psalmist reminds us that they are servants, not gods. As you discuss, notice how the verse moves from God’s appointment to the sun’s obedient knowledge, a pattern of command and response that shapes all creation.
Discussion questions
- What does this verse tell us about the relationship between God and the heavenly bodies?
- Look at Genesis 1:14-18. How does Psalm 104:19 echo that passage? What is similar, and what is new in the psalmist’s wording?
- The Hebrew word for “seasons” (mo’adim) is also used for Israel’s appointed festivals. Why does the psalmist choose this word instead of a simple word for “months”?
- The sun “knows” its setting. In what ways is the sun’s obedience different from human knowledge? In what ways might it be a model?
- How does the reliability of the moon and sun affect your everyday life? What would change if they were erratic?
- The next verses describe night (verses 20-23). How does the sun’s setting serve different creatures? What does that say about God’s care for the whole creation?
- If the psalmist were writing today, what created thing might he point to as a witness to God’s order and goodness?
Word Study
The key original-language words in this verse. Select any word for its full lexicon entry — meaning, every occurrence in Scripture, and related words.
Cross-References
Source: Treasury of Scripture Knowledge (TSK, public domain)
| Genesis 1:14 | God said, “Let there be lights in the expanse of the sky to divide the day from the night; and let them be for signs to mark seasons, days, and years; |
| Genesis 1:18 | and to rule over the day and over the night, and to divide the light from the darkness. God saw that it was good. |
| Deuteronomy 4:19 | and lest you lift up your eyes to the sky, and when you see the sun and the moon and the stars, even all the army of the sky, you are drawn away and worship them, and serve them, which Yahweh your God has allotted to all the peoples under the whole sky. |
| Job 31:26 | if I have seen the sun when it shined, or the moon moving in splendor, |
| Job 31:28 | this also would be an iniquity to be punished by the judges, for I would have denied the God who is above. |
| Job 38:12 | “Have you commanded the morning in your days, and caused the dawn to know its place, |
| Psalms 8:3 | When I consider your heavens, the work of your fingers, the moon and the stars, which you have ordained, |
| Psalms 19:6 | His going out is from the end of the heavens, his circuit to its ends. There is nothing hidden from its heat. |
Interlinear and lexical data from STEPBible (CC BY 4.0). Cross-reference data from OpenBible.info (CC BY 4.0). Commentaries are public domain.
For personal reflection
Read the devotional page — prayer, application, and "for families"
What the Commentators Say
7 public-domain commentaries, condensed into plain language.
Barnes' Notes on the Bible Protestant 1832
Barnes emphasizes that the moon’s role in marking seasons is part of a benevolent design that breaks time into manageable intervals for human benefit. He also notes the sun’s perfect reliability, never setting early or late, which shows God’s care for both people and the creatures that emerge at night.
Calvin's Commentaries Reformed 1564
Calvin points out that this psalm does not focus on God's special gifts to his church or the hope of heaven, as the previous one did. Instead, it uses the vivid images of creation and nature to show God's wisdom, power, and goodness, calling us to praise him as a Father who cares for us in this earthly life.
Geneva Bible Notes Reformed 1599
The Geneva note highlights God's direct appointment of the moon for specific seasons, while the sun instinctively knows its daily setting. The distinction emphasizes divine order: the moon's purpose is tied to seasonal timekeeping, whereas the sun follows a fixed, regular course.
Gill's Exposition of the Bible Baptist 1748
Gill notes the moon is mentioned before the sun because, as Kimchi observed, night preceded
Keil & Delitzsch OT Commentary Protestant 1876
Keil-Delitzsch observe that the psalmist arranges the moon first so the picture of day follows night. They note the moon as the calendarial star marking festivals, while the sun measures the day. The lions' roar is an innate asking of God for food, and all of nature depends on God's will.
Lange's Commentary Reformed 1857
Lange reads this psalm as a hymn based on the Genesis creation account, but not matching it day by day. He argues it celebrates God's ongoing creative and providential work in nature, using poetic images like light as a garment to depict God's royal splendor reflected in creation. The psalm concludes with a desire for the removal of evil from God's good world.
Wesley's Explanatory Notes Methodist/Wesleyan 1754
Wesley highlights that the moon was created to distinguish seasons, covering not only natural events like the ebbing and flowing of waters but also sacred and civil affairs. He points out that both religious festivals and civic schedules were commonly regulated by the moon, giving it a practical role in ordering human life.