Psalms 18:7

7. Here begins the lofty description of David’s deliverances, continuing to Psalms 18:20. The sublimity of his strain cannot be exceeded. The long years of his sufferings, his war’s, and his triumphs, come under one comprehensive glance. A traceable line of personal history is seen throughout, but the fulness of his descriptions are realized only by the Church in her struggles and victories. In this view, the psalm allies itself to the symbolism of the apocalypse.

Then When God answered his prayer and arose to judgment.

The earth shook and trembled The allusion here seems to be to Genesis 19:25: “And he overthrew those cities, and all the plain:” an earthquake attended by an eruption, as modern geological observation attests.