Psalms 77:18 Commentary: Storm Imagery of Red Sea Deliverance

Psalm 77 is attributed to Asaph and belongs to a genre of community lament that pivots to praise through remembrance. The psalmist cries out in distress (verses 1, 9) then recalls “the works of the Lord” (verse 11), specifically the exodus from Egypt. Verses 16, 20 form a carefully crafted theophany: the waters of the Red Sea see God and writhe, the clouds pour water, thunder rolls, lightning flashes, and the earth shakes. The storm imagery draws on ancient Near Eastern conventions in which a deity rides the clouds, hurls lightning, and shakes the mountains. Israel reshaped these motifs to proclaim that Yahweh alone is the Divine Warrior who defeats Pharaoh and delivers His people. The key Hebrew term galgal (translated “whirlwind” in most modern versions) literally means “wheel,” suggesting the rolling motion of a chariot or of thunder itself. Some ancient Jewish interpreters understood it as the “vault of heaven,” but the context, together with the parallel in Habakkuk 3:8, 15, strongly favors the whirlwind as God’s chariot of judgment. The language would have resonated with an audience familiar with the thunderstorm as a sign of divine power, especially in the arid landscape where rain was both a blessing and, in excess, a terrifying force.

The consulted sources note no significant textual variants for this verse. The primary difference in English translations stems from the rendering of the Hebrew word galgal (whirlwind vs. heaven vs. wheel), which represents a lexical choice rather than a manuscript variation.

Across church history, Psalm 77:18 has been read as a vivid reminder of God’s saving power in the Exodus. Early Christian writers saw the storm as a type of Christ’s victory over the powers of darkness at the cross and resurrection. During the Reformation, John Calvin used this psalm to encourage believers that even in deep affliction they could call on God and remember His past faithfulness. Matthew Henry’s devotional commentary emphasizes that “remembering God’s wonders of old” is a remedy for despair. In modern hymnody, the verse’s imagery appears in songs that celebrate God’s majesty in creation and redemption, such as “The God of Abraham Praise” and contemporary worship anthems. The verse continues to comfort Christians who, like the psalmist, find themselves in a storm and need to remember that the same God who thundered at the Red Sea still leads His people.

Three-point outline

1. The voice in the whirlwind: God speaks not from stillness but from the storm. His thunder is not mere noise; it carries authority and deliverance. In the chaos of affliction, believers can hear the voice of the One who commands creation.
2. The light that pierces darkness: Lightning “lit up the world.” Just as the pillar of fire once guided Israel, God’s light exposes our enemies, sin, fear, death, and shows the way through the sea.
3. The shaking that brings stability: The earth trembles, but God’s people are led “like a flock” (verse 20). When everything familiar is shaken, the Shepherd’s hand is still steady.

Five-point outline

1. Storm as God’s chariot: The whirlwind is God’s vehicle. He arrives in ways that humble every earthly power.
2. Thunder as God’s voice: Not a whisper but a roar. He speaks with authority over nature and history.
3. Lightning as God’s arrows: His judgments are quick, visible, and effective. No enemy hides from His light.
4. Earthquake as God’s footfall: When God steps down, creation quakes. Yet He steps not to destroy His people but to rescue them.
5. Calm after the storm: The deliverance at the sea leads to pastoral care, He leads His people home.

Illustration hooks

• A violent thunderstorm that knocks out power. The family huddles together, hearing the wind and the cracks of lightning. Then the storm passes, and in the quiet they realize they are safe, more aware of the power that protected them.
• An old photograph of a flood or hurricane. Years later, the community looks back at the devastation and the eventual rebuilding. The memory is painful but also holds a story of rescue and solidarity.
• A child afraid of thunder. A parent explains that the loud noise is just God “moving furniture” or “rolling His chariot.” The image gives comfort, and the child learns to connect thunder with God’s power and care.

Questions your congregation is asking

• Why does God seem to speak through storms in my life rather than through gentle whispers?
• How can I trust that God’s past faithfulness (like the Exodus) applies to my present crisis?
• Is it okay to be afraid of God’s power, or should I only feel comforted?

This verse appears in a psalm that moves from deep lament to confident praise. The writer remembers God’s works of old, specifically the deliverance from Egypt, and uses storm imagery to paint God’s mighty presence. As a group, read Psalm 77:1, 20 together, noting the shift in tone between verses 1, 9 and 11, 20. Then focus on verse 18.

Discussion questions

1. Observation: What three natural phenomena does the psalmist describe in verse 18? How are they connected to one another?
2. Observation: Read Exodus 19:16, 18 and Judges 5:4. What similarities do you see with Psalm 77:18? What is the effect of repeating this kind of language?
3. Interpretation: The KJV reads “in the heaven” where modern versions read “in the whirlwind.” Why does this difference matter for understanding the verse?
4. Interpretation: How does the storm imagery in verse 18 serve the psalmist’s purpose of remembering God’s redemption at the Red Sea (verses 19, 20)?
5. Interpretation: The psalmist uses the word “your” repeatedly, “your thunder,” “your lightning.” What does this personal possession of natural forces teach us about God’s relationship to creation?
6. Application: When you face a situation that feels chaotic (like a storm), what helps you remember that God is still in control?
7. Application: How can you intentionally “remember the works of the Lord” (verse 11) this week, especially when you are tempted to despair?