Psalm 77:18 mirrors this: thunder, lightning, and the earth trembling at God's presence — a parallel theophany.

Psalm 114:7 calls the earth to tremble at the presence of the God of Jacob — exactly the response described here.

Exodus 19:16 records the thunder, lightning, and trembling at Sinai—the historical event that Psalm 68:8 poetically describes.

Exodus 19:18 says the whole mountain quaked greatly as God descended—the very event referenced in Psalm 68:8.

Deuteronomy 5:23-25 recounts the people's fear at Sinai's fire and voice, the same theophany behind Psalm 68:8's shaking.

Judges 5:4 uses nearly identical language—earth trembling and heavens dropping—as God marches from Sinai, matching Psalm 68:8.

Judges 5:5 continues the song with mountains melting before Sinai, directly paralleling the shaking of Sinai in Psalm 68:8.

Isaiah 64:3 recalls God's descent causing mountains to flow—directly parallel to the earth shaking and Sinai moving in Psalm 68:8.

Hebrews 12:26 explicitly references the shaking of the earth at Sinai, the same event behind Psalm 68:8's theophany.

1 Kings 19:11 describes the same mountain (Horeb/Sinai) shaking with an earthquake as God passes by — a direct parallel to the theophany.

Habakkuk 3:10 has mountains trembling at God's sight, directly mirroring Sinai's shaking.