And I will lay it waste: it shall not be pruned, nor dug; but there shall come up briers and thorns: I will also command the clouds that they rain no rain upon it.
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Just as clouds when they rumble and clash (so the physicists tell us) send forth darts of lightning, so the words of the prophets shone out as signs of truth. In fact you often find the prophets in the divine Scriptures compared with clouds; for example, “And I will command the clouds not to rain upon it.” - "Exposition of the Psalms 96.4"
The noise of the waters is great when sweet psalmody is offered, when guilt is removed by groans and tears, when thanks are rendered for a gift received. The different prayers of people resound in sacred churches like the crashing of the sea. He beautifully appends why the noise of the waters is great: it was because the clouds sent forth a sound. We have often said that clouds signify preachers, of whom Scripture says, “I will command my clouds not to pour rain on that land.” They uttered that great sound when they made known the precepts of the Lord throughout the whole world. - "Exposition of the Psalms 76.18"