Catholic Commentary
Prayer for God's Enduring Glory and Acknowledgment of His Awesome Power
31Let Yahweh’s glory endure forever. Let Yahweh rejoice in his works.32He looks at the earth, and it trembles. He touches the mountains, and they smoke.
Psalms 104:31–32 expresses a prayer for God's glory to endure eternally, followed by a stark affirmation of divine sovereignty: a single divine glance causes the earth to tremble and mountains to smoke. The passage pivots from tender petition to overwhelming recognition that creation's stability depends entirely on God's effortless, absolute attention and power.
Creation trembles at God's glance because it exists only moment by moment in his unflinching attention—not as a machine that runs by itself, but as a gift held together by constant divine love.
Catholic tradition brings distinctive depth to these two verses through its theology of divine glory and what the Catechism calls the "nuptial" relationship between Creator and creation.
On the Glory of God: The Catechism teaches that "God's glory is the manifestation of God's holiness" (CCC 2809) and that "the glory of God is man fully alive" (citing St. Irenaeus of Lyon, Adversus Haereses IV.20.7). The psalmist's prayer in v. 31 is thus understood in Catholic theology not as a passive wish but as an act of latria — the worship due to God alone — by which the creature returns to God the glory it has received. St. Augustine, meditating on this psalm in his Enarrationes in Psalmos, reads the prayer as the soul's recognition that it is not the source of its own beauty: all created goodness is a participation in and reflection of divine glory, and prayer sustains that participation.
On the Fear of the Lord: Verse 32's portrait of cosmic trembling illuminates the Catholic understanding of timor Domini — the fear of the Lord — as one of the seven gifts of the Holy Spirit. This is not servile fear (CCC 1828) but the filial awe of a creature who genuinely apprehends the infinite distance between itself and God, and yet is drawn rather than repelled. St. Thomas Aquinas (Summa Theologiae II-II, q.19) distinguishes this fear precisely as a gift that perfects rather than paralyzes.
On Creation's Contingency: Vatican I (Dei Filius, 1870) defined that the world was created freely by God from nothing and remains utterly contingent upon him. Verse 32 is a poetic icon of that dogmatic truth: creation has no existence independent of the divine will and gaze. Pope Benedict XVI, in Verbum Domini (2010, §9), spoke of creation as "the place where God's love is mediated," a fragile gift held in being by divine attention — exactly the insight compressed into the image of a trembling earth.
In an age shaped by scientific mastery of the natural world, it is easy for even faithful Catholics to slip into a functional deism — a sense that creation runs on its own and God is a distant first cause. Psalm 104:31–32 shatters that complacency. The earth does not merely tremble in ancient memory; it trembles now, held in being moment by moment by the creative gaze of God. To pray "let your glory endure forever" is to consciously reorient oneself away from the illusion of self-sufficiency toward radical dependence and praise.
Practically, these verses invite Catholics to recover the Liturgy of the Hours as a daily structure for returning glory to God — the very purpose for which the psalms were preserved in Christian prayer. They also speak to ecological responsibility: if creation trembles at God's glance, it is not ours to exploit carelessly. It is a theater of divine glory entrusted to our stewardship. Finally, in moments of personal crisis — illness, loss, failure — v. 32's image of mountains that smoke before God relativizes human catastrophe. Nothing in our lives lies outside the sovereign gaze that shakes mountains. That is both humbling and deeply consoling.
Commentary
Psalms 104:31 — "Let Yahweh's glory endure forever"
The Hebrew verb yiḥyeh ("let it endure" or "let it be") carries both optative and declarative force: this is simultaneously a wish, a prayer, and a confession. The psalmist, having surveyed the whole theater of creation in Psalm 104:1–30 — sky, sea, mountains, animals, seasons, and human toil — does not conclude with a catalog of creatures but with a cry directed at the Creator. The word kāḇôd (glory) is charged with meaning throughout the Hebrew Bible: it refers to the weighty, luminous, self-revealing presence of God. In Exodus 40, the glory of Yahweh fills the tabernacle; in Isaiah 6, the seraphim cry that the whole earth is full of it. Here the psalmist prays that this same kāḇôd — already manifest in every mountain and sea creature named in the psalm — would never diminish or withdraw. The phrase "forever" (lĕ'ôlām) places the prayer outside human time, aligning it with the eternal nature of God himself. This is not a prayer for novelty but for permanence: that the God who has shown himself glorious in creation would remain recognizably, adorably present in his creation to the end of ages.
Psalms 104:32 — "He looks at the earth, and it trembles; he touches the mountains, and they smoke"
The second verse (the full verse in the Hebrew tradition includes the phrase about mountains smoking, often rendered together with v. 32) introduces an abrupt tonal shift: from tender petition to thunderstruck awe. The verbs are vivid and instantaneous — yabbeṭ ("he looks"), tirgāz ("it trembles"). God does nothing more than look, and geological catastrophe follows. The image of smoking mountains is almost certainly a reference to volcanic activity, familiar in the ancient Near East, but the theological point transcends geophysics: there is an absolute ontological disproportion between the Creator and his creation. The earth, so lovingly described across 30 verses as watered, filled, and teeming with life by God's provision, is revealed in a single glance to be utterly dependent, fragile, and responsive to divine attention. This is not a God who is simply a feature of the landscape. He is its sovereign.
The Typological and Spiritual Senses
Patristically, this verse was read Christologically. The divine glory (kāḇôd/doxa) prayed for in v. 31 finds its definitive, enfleshed expression in the Incarnate Word. As John 1:14 declares, "the Word became flesh and dwelt among us, and we have seen his glory." The prayer "let Yahweh's glory endure forever" is, from a New Testament vantage, answered in the eternal priesthood and resurrection of Christ, whose glorified humanity endures forever at the Father's right hand. The trembling of the earth in v. 32 resonates typologically with the earthquakes at Sinai (Exodus 19), at the crucifixion (Matthew 27:51), and at the resurrection (Matthew 28:2), moments when divine glory breaks definitively into history. In the allegorical sense, the "mountains that smoke" represent human pride and worldly power, which are shown to be insubstantial when the gaze of God is turned upon them.