BIBLE CHAPTER STUDY
Psalms 90 — Moses on Eternal God and Brief Human Life
A prayer attributed to Moses that contrasts God's eternity with human mortality and asks for wisdom to count brief days.
Scripture
1A Prayer of Moses the man of God. Lord, thou hast been our dwelling-place In all generations.
2Before the mountains were brought forth, Or ever thou hadst formed the earth and the world, Even from everlasting to everlasting, thou art God.
3Thou turnest man to destruction, And sayest, Return, ye children of men.
4For a thousand years in thy sight Are but as yesterday when it is past, And as a watch in the night.
5Thou carriest them away as with a flood; they are as a sleep: In the morning they are like grass which groweth up.
6In the morning it flourisheth, and groweth up; In the evening it is cut down, and withereth.
7For we are consumed in thine anger, And in thy wrath are we troubled.
8Thou hast set our iniquities before thee, Our secret sins in the light of thy countenance.
9For all our days are passed away in thy wrath: We bring our years to an end as a sigh.
10The days of our years are threescore years and ten, Or even by reason of strength fourscore years; Yet is their pride but labor and sorrow; For it is soon gone, and we fly away.
11Who knoweth the power of thine anger, And thy wrath according to the fear that is due unto thee?
12So teach us to number our days, That we may get us a heart of wisdom.
13Return, O Jehovah; How long? And let it repent thee concerning thy servants.
14Oh satisfy us in the morning with thy lovingkindness, That we may rejoice and be glad all our days.
15Make us glad according to the days wherein thou hast afflicted us, And the years wherein we have seen evil.
16Let thy work appear unto thy servants, And thy glory upon their children.
17And let the favor of the Lord our God be upon us; And establish thou the work of our hands upon us; Yea, the work of our hands establish thou it.
What this passage means
Psalms 90 opens by anchoring Israel in God rather than in any earthly location. Calling the Lord the 'dwelling place in all generations' sets the theological frame: security and continuity come from God's character, not from geography, institutions, or human achievement. The superscription 'A Prayer of Moses the man of God' links the psalm to Israel's foundational mediator and signals that what follows is intercession as much as meditation.
The central movement of the chapter is a sustained contrast between divine eternity and human brevity. God is 'from everlasting to everlasting' before the mountains came into being, while human life is likened to a passing flood, sleep, morning grass that flowers and withers, a sigh, and a short span of seventy or eighty years. The rhetorical purpose is not despair but perspective: verses 3 and 12 frame mortality as a divine summons to 'return,' and the request to 'number our days' asks for wisdom so that limited time yields eternal fruit.
The psalm closes by turning from lament to petition. The congregation asks God to 'return' from apparent absence, to satisfy them with lovingkindness in the morning, to match future gladness with former suffering, and to establish the work of their hands. The doubled closing line — 'establish thou it' — reflects the conviction that even human labor endures only when grounded in God's favor.
Context
The superscription identifies this poem as 'A Prayer of Moses the man of God,' echoing how Moses is described in texts such as Deuteronomy 33:1 and Joshua 14:6, and situating the psalm within Israel's long confession of God's covenant faithfulness. The opening image of God as a 'dwelling place' across generations resonates with the promise in Deuteronomy 33:27 that 'the eternal God is thy dwelling-place.'
The psalm's meditation on time — contrasting eternity with a thousand years 'as yesterday' — invites comparison with the New Testament reflection in 2 Peter 3:8, and its prayer to 'number our days' is paired in the Psalter with David's similar request in Psalms 39:4. The closing petition that God's work appear and that 'the work of our hands' be established echoes Proverbs 16:3, where committing works to the Lord brings establishment.
Key words in the original
- H8605 תְּפִלָּה (təp̄illāh) — the superscription's 'Prayer.' The provided gloss marks it as intercession or supplication, with an extension toward a hymn. In verse 1 the word frames the entire psalm as addressed petition rather than mere reflection, which is why the chapter moves naturally from meditation on mortality to direct requests for mercy and favor.
- H4583 מָעוֹן (māʿôn) — rendered 'dwelling place' in verse 1. The provided definition notes an abode of God (Tabernacle or Temple), of men (home), or of animals (lair), and a retreat or asylum. Its use here applies the language of God's earthly shrine to God's person: he himself, across every generation, is the place where his people take shelter.
- H5769 עוֹלָם (ʿôlām) — rendered 'everlasting' in verse 2. The provided gloss marks it as concealed time, practically eternity, often used adverbially 'always.' Its repetition 'from everlasting to everlasting' is the strongest statement of God's eternality in the Psalter, anchoring the contrast with human fineness that follows.
Related verses
- Psalms 39:4 David's request 'Jehovah, make me to know mine end, and the measure of my days' parallels Psalm 90:12's plea to 'teach us to number our days.' Both psalms treat conscious awareness of life's brevity as the doorway to a heart of wisdom.
- Deuteronomy 33:27 Moses' own blessing speaks of 'the eternal God is thy dwelling-place, and underneath are the everlasting arms.' Echoing that language, Psalm 90:1 calls the Lord 'our dwelling-place in all generations,' binding Israel's security to God's eternal character rather than to any earthly territory.
- 2 Peter 3:8 The apostolic line 'one day is with the Lord as a thousand years, and a thousand years as one day' reverses the psalm's image of 'a thousand years in thy sight … as yesterday.' Both texts insist that human chronology cannot be mapped onto divine eternity without remainder.
Common questions
Why is Psalm 90 attributed to Moses?
The superscription itself reads 'A Prayer of Moses the man of God.' The psalm does not explain why this attribution is given. Some readers have noticed thematic links to Moses' situation in the wilderness, but the provided material only states that the prayer is connected to 'Moses the man of God.' Whether this is historical authorship or a later stylistic placement is not decided by the text itself.
What does 'number our days' mean in verse 12?
Within the chapter, the request follows immediately after the observation that human life is seventy or eighty years filled with labor and sorrow and then flies away. To 'number our days' therefore means to live with conscious awareness of life's brevity, so that, as the verse concludes, we may gain 'a heart of wisdom.' The provided cross reference to Psalms 39:4 confirms this reading as a prayer for wisdom about mortality.
How does Psalm 90 end on a hopeful note after its heavy opening?
The first half meditates on mortality and divine wrath, but starting at verse 13 the prayer shifts to direct petition: 'Return, O Jehovah,' satisfy us with lovingkindness, match future joy to past affliction, reveal God's work, and establish the work of human hands. The doubled closing line 'establish thou it' shows that hope rests on God's favor establishing even fragile human labor.