Psalms — Chapter 90

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1 Lord, thou hast been our dwelling place in all generations.
2 Before the mountains were brought forth, or ever thou hadst formed the earth and the world, even from everlasting to everlasting, thou art God.
3 Thou turnest man to destruction; and sayest, Return, ye children of men.
4 For a thousand years in thy sight are but as yesterday when it is past, and as a watch in the night.
5 Thou carriest them away as with a flood; they are as a sleep: in the morning they are like grass which groweth up.
6 In the morning it flourisheth, and groweth up; in the evening it is cut down, and withereth.
7 For we are consumed by thine anger, and by thy wrath are we troubled.
8 Thou hast set our iniquities before thee, our secret sins in the light of thy countenance.
9 For all our days are passed away in thy wrath: we spend our years as a tale that is told.
10 The days of our years are threescore years and ten; and if by reason of strength they be fourscore years, yet is their strength labour and sorrow; for it is soon cut off, and we fly away.
11 Who knoweth the power of thine anger? even according to thy fear, so is thy wrath.
12 So teach us to number our days, that we may apply our hearts unto wisdom.
13 Return, O LORD, how long? and let it repent thee concerning thy servants.
14 O satisfy us early with thy mercy; that we may rejoice and be glad all our days.
15 Make us glad according to the days wherein thou hast afflicted us, and the years wherein we have seen evil.
16 Let thy work appear unto thy servants, and thy glory unto their children.
17 And let the beauty 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.
Abrahamic Catechism
Bible Study
Psalms — Chapter 90
◈ Zohar

• The Zohar (II, 117a) attributes this psalm to Moses (the only psalm with this attribution), linking it to the Sefirah of Netzach — the eternal endurance of divine purpose across time. Moses saw the entire span of history and understood that the Sitra Achra's campaigns, however devastating, are moments within an infinite divine plan. This perspective is the Tzaddik's ultimate psychological weapon.

• "Before the mountains were brought forth, or ever You had formed the earth and the world, from everlasting to everlasting You are God" — the Zohar (I, 15a) establishes God's pre-existence beyond all creation, including the creation of the Klipot. The Sitra Achra is a created entity with a beginning and an end; God has neither. This ontological asymmetry guarantees the ultimate outcome.

• "You turn man back to dust and say, 'Return, children of man!'" — the Zohar (III, 213a) reads the return to dust as the recycling of the physical body through the Sitra Achra's domain (the grave) back to the divine source. The command "Return!" (Shuvu) is both the decree of death and the invitation to Teshuvah — the same word carrying both judgment and mercy simultaneously.

• "For a thousand years in Your sight are but as yesterday when it is past" — the Zohar (II, 115b) uses this verse to demonstrate that the Sitra Achra's temporal victories are cosmically insignificant. A thousand years of Klipot-dominion is a single day in the divine perspective. The Tzaddik who internalizes this timescale is immune to the Sitra Achra's propaganda of permanence.

• "So teach us to number our days that we may get a heart of wisdom" — the Zohar (I, 226a) teaches that numbering (Limnot) one's days is a Kabbalistic meditation in which each day is assigned its Sefiratic correspondence. This practice transforms time from a neutral medium into a spiritual weapon — each day becomes a specifically calibrated tool for the extraction of holy sparks from the Klipot.

✦ Talmud

• Berakhot 11b teaches that this is the only psalm attributed to Moses — the Talmud regards it as the foundational prayer of mortality, establishing that even Israel's greatest warrior-prophet acknowledged human limitation before the eternal God.

• Shabbat 89a records Moses ascending into the cloud as a spiritual warrior — "From everlasting to everlasting You are God" (verse 2) is Moses's declaration of the divine permanence he witnessed at Sinai, which is itself a weapon against despair.

• Sanhedrin 100b connects the thousand years being like a watch in the night (verse 4) to the Talmudic teaching on repentance — even a single moment of genuine return to God compresses immense spiritual distance, because God's time scale renders human delay reversible.

• Yoma 86b links "teach us to number our days" (verse 12) to the practice of teshuvah — the Talmud reads this verse as the foundational command for spiritual self-examination, the internal intelligence work that supports all external spiritual warfare.

• Sotah 14a notes that Moses ends his prayer with a request for God's work to be established (verse 17) — the Talmud connects this to Moses's humility, understanding that even the greatest leader's deeds require divine validation to become permanent spiritual achievements.