Psalms 18:7

7.Then the earth shook. David, convinced that the aid of God, which he had experienced, was of such a character, that it was impossible for him to extol it sufficiently and as it deserved, sets forth an image of it in the sky and the earth, as if he had said, It has been as visible as the changes which give different appearances to the sky and the earth. If natural things always flowed in an even and uniform course, the power of God would not be so perceptible. But when he changes the face of the sky by sudden rain, or by loud thunder, or by dreadful tempests, those who before were, as it were, asleep and insensible, must necessarily be awakened, and be tremblingly conscious of the existence of a presiding God. (400) Such sudden and unforeseen changes manifest more clearly the presence of the great Author of nature. No doubt, when the sky is unclouded and tranquil, we see in it sufficient evidences of the majesty of God, but as men will not stir up their minds to reflect upon that majesty, until it come nearer to them, David, the more powerfully to affect us, recounts the sudden changes by which we are usually moved and dismayed, and introduces God at one time clothed with a dark cloud, — at another, throwing the air into confusion by tempests, — now rending it by the boisterous violence of winds, — now launching the lightnings, — and anon darting down hailstones and thunderbolts. In short, the object of the Psalmist is to show that the God who, as often as he pleases, causes all parts of the world to tremble by his power, when he intended to manifest himself as the deliverer of David, was known as openly and by signs as evident as if he had displayed his power in all the creatures both above and beneath.

In the first place, he says, The earth shook, and nothing is more dreadful than an earthquake. Instead of the words, the foundations of the mountains, it is in the song, as recorded in 2nd Samuel, the foundations of the heavens; but the meaning is the same, namely, that there was nothing in the world so settled and steadfast which did not tremble, and which was not removed out of its place. David, however, as I have already observed in the beginning, does not relate this as a piece of history, or as what had actually taken place, but he employs these similitudes for the purpose of removing all doubt, and for the greater confirmation of faith as to the power and providence of God; because men, from their slowness of understanding, cannot apprehend God except by means of external signs. Some think that these miracles were actually wrought, and performed exactly as they are here related; but it is not easy to believe this, since the Holy Spirit, in the narrative given of David’s life, makes no mention whatever of such wonderful displays of divine power in his behalf. We cannot, however, justly censure or find fault with this hyperbolic manner of speaking, when we consider our slowness of apprehension, and also our depravity, to which I have just now called your attention. David, who was much more penetrating and quick of understanding than ordinary men, finding he could not sufficiently succeed in impressing and profiting people of sluggish and weak understandings by a simple manner of speaking, describes under outward figures the power of God, which he had discovered by means of faith, and the revelation of the Holy Spirit. He doubtless hereby apprehended and knew more distinctly the omnipresent majesty of God, than the dull sort of common people perceive the hand of God in earthquakes, tempests, thunders, the gloomy lowerings of the heavens, and the boisterous winds. At the same time, it is proper to consider, that although God had, in a wonderful manner, displayed his grace in defending and maintaining David, many, nevertheless, thought that it was by his own skill, or by chance, or by other natural means, that all his affairs had come to a prosperous issue; and it was such stupidity or depravity as this which he saw in the men of his own time, that constrained him to mention and to summon together all parts of creation as witnesses for God. Some also justly and judiciously consider that, in the whole of this description, David has an allusion to the common deliverance of God’s chosen people from Egypt. As God then designed and established that event to be a perpetual memorial, from which the faithful might learn that he was the guardian and protector of their welfare, so all the benefits which, from that period, he bestowed upon his people, either as a public body or as private individuals, were, so to speak, appendages of that first deliverance. Accordingly David, in other places as well as here, with the view of exalting the succor which God had granted to his people, sets forth that most memorable instance of the goodness of God towards the children of Israel, as if it were the archtype or original copy of the grace of God. And surely, while many, seeing him an exile from his country, held him in derision as a man expelled from the family of God, and many murmured that he had violently and unrighteously usurped the kingdom, he had good ground to include, under the deliverance which had been common to all the people, the protection and safety which God had afforded to himself; as if he had said, I have been wrongfully cast off as an alien or stranger, seeing God has sufficiently shown, in the deliverance which he has wrought for me, that by him I am owned and acknowledged to be a distinguished and valuable member of the Church. We see how the prophets, whenever they would inspire the people with the hope of salvation, call their thoughts back to the contemplation of that first covenant which had been confirmed by those miracles which were wrought in Egypt, in the passage through the Red Sea and in Mount Sinai. When he says, The earth trembled, because he was wroth, it is to be understood as referring to the ungodly. It is a form of speech which God often employs, to say, that, being inflamed with indignation, he arms himself to maintain the safety of his people against their persecutors.