Gregory the Dialogist

When He made a decree for the rain, and a way for the sounding tempests, then did He see it and declare it; He prepared it, yea, and searched it out. By 'rain' the sayings of those that preach are used to be denoted. Whence it is said by Moses; Let my doctrine be waited for as the rain; whose words, that is to say, when they gently persuade are 'rain,' but when they thunder out terrible things touching the Judgment to come, they are 'sounding tempests.' And it deserves to be noted, that 'a decree is made for the rain,' in order that …

Morals on the Book of Job, Book XIX ↗

Thomas Aquinas

Next he speaks about the very generation of the rains when he says, "when he made a law for the rains," to come down at certain times and in certain places. Third he speaks about their effect, especially in the sea which is disturbed by atmospheric changes, and so he continues, "and" he was setting, "the way for the storm," the waves, "which roar," from great agitation, because even storms of this kind arise at certain times and in a certain intensity.

Commentary on Job ↗