Psalms 148:8

"Fire, hail, snow, ice, wind of storms, which do His word" [Psalm 148:8]. Wherefore added he here, "which do His word"? Many foolish men, unable to contemplate and discern creation, in its several places and rank, performing its movements at the nod and commandment of God think that God does indeed rule all things above, but things below He despises, casts aside, abandons, so that He neither cares for them, nor guides, nor rules them; but that they are ruled by chance, how they can, as they can: and they are influenced by what they say sometimes to one another: e.g. "If it were God that gave rain, would He rain into the sea? What sort of providence," they say, "is this? Getulia is thirsty, and it rains into the sea." They think that they handle the matter cleverly. One should say to them, "Getulia does at all events thirst, thou dost not even thirst." For good were it for you to say to God, "My soul has thirsted for You." For he that thus argues is already satisfied; he thinks himself learned, he is not willing to learn, therefore he thirsts not. For if he thirsted, he would be willing to learn, and he would find that everything happens upon earth by God's Providence, and he would wonder at the arrangement of even the limbs of a flea. Attend, beloved. Who has arranged the limbs of a flea and a gnat, that they should have their proper order, life, motion? Consider one little creature, even the very smallest, whatever you will. If you consider the order of its limbs, and the animation of life whereby it moves; how does it shun death, love life, seek pleasures, avoid pain, exert various senses, vigorously use movements suitable to itself! Who gave its sting to the gnat, for it to suck blood with? How narrow is the pipe whereby it sucks! Who arranged all this? Who made all this? You are amazed at the smallest things; praise Him that is great. […]

There follows the seventh commandment: "You shall not steal," and the seventh plague: hail on the crops. What you steal from the commandment, you lose from your account in heaven. No one makes an unjust gain without suffering a just loss. For example, someone steals and acquires a suit, but by the judgment of heaven he forfeits trust. Where there is gain, there is loss; visible gain, invisible loss; gain from his own blindness, loss from the Lord's cloud. You see, dearly beloved, there is nothing that escapes providence. Or do you really think that what people suffer, they suffer while God is asleep? We see these things happening all the time and all around; clouds gather, rain comes down in buckets, hail is hurled down, the earth shaken by thunder, scared out of its wits by lightning. Everywhere these things are thought to happen as though they had nothing to do with divine providence. Against such ideas that psalm is on its guard: "Praise the Lord from the earth"—his praises had already been told from the heavens—"dragons and all deeps, fire, hail, snow, ice, stormy winds, which all carry out his word." So those who for their own evil desire steal outwardly are hailed on inwardly by the judgment of God.

Excepting, therefore, those corporeal things which are done in the order of nature in a perfectly usual series of times, as e.g., the rising and setting of the stars, the generations and deaths of animals, the innumerable diversities of seeds and buds, the vapors and the clouds, the snow and the rain, the lightnings and the thunder, the thunderbolts and the hail, the winds and the fire, cold and heat, and all like things; excepting also those which in the same order of nature occur rarely, such as eclipses, unusual appearances of stars, and monsters, and earthquakes, and such like;—all these, I say, are to be excepted, of which indeed the first and chief cause is only the will of God; whence also in the Psalm, when some things of this kind had been mentioned, "Fire and hail, snow and vapor, stormy wind," lest any one should think those to be brought about either by chance or only from corporeal causes, or even from such as are spiritual, but exist apart from the will of God, it is added immediately, "fulfilling His word."

Praise the Lord from the earth. Since the angels have praised, the heaven has praised: let the earth also praise. Let us see which things of the earth praise first. Dragons and all deeps: fire, hail, snow, ice, the spirit of storms, which do his word: mountains and all hills, fruit-bearing trees, and all cedars: beasts, and all cattle, serpents and feathered fowl. After such great things, what is said? After the dragons, after the serpents, after the fire, after the hail, after the beasts and all the cattle?

Fire - Lightnings and other fireworks of the air. Vapor - Or, fumes: hot exhalations. Fulfilling his word - Executing his commands, either for the comfort or punishment of the inhabitants of the earth.