Psalms 18:15

15.And the sources of the waters were seen. In this verse, David doubtless alludes to the miracle which was wrought when the chosen tribes passed through the Red Sea. I have before declared the purpose for which he does this. As all the special benefits which God in old time conferred upon any of the children of Abraham as individuals, were so many testimonies by which he recalled to their remembrance the covenant which he had once entered into with the whole people, to assure them that he would always continue his grace towards them, and that one deliverance might be to them a token or pledge of their perpetual safety, and of the protection of God, David fitly conjoins with that ancient deliverance of the Church the assistance which God had sent from heaven to him in particular. As the grace which he declares God had shown towards him was not to be separated from that first deliverance, since it was, so to speak, a part and an appendage of it, he beholds, as it were at a glance, or in an instant, both the ancient miracle of the drying up of the Red Sea, and the assistance which God granted to himself. In short, God, who once opened up for his people a way through the Red Sea, and then showed himself to be their protector upon this condition, that they should assure themselves of being always maintained and preserved under his keeping, now again displayed his wonderful power in the defense and preservation of one man, to renew the remembrance of that ancient history. From this it appears the more evidently, that David, in using these apparently strange and exaggerated hyperboles, does not recite to us the mere creations of romance to please the fancy, after the manner of the heathen poets, (407) but observes the style and manner which God had, as it were, prescribed to his people. At the same time, we ought carefully to mark the reason already adverted to, which constrained him to magnify the grace of God in a style of such splendid imagery, namely, because the greater part of the people never made the grace of God the subject of serious consideration, but, either through wickedness or stupidity, passed over it with shut eyes. The Hebrew word אפיקים, aphikim, which I have rendered sources, properly signifies the channels of rivers; but David, in this passage, evidently means that the very springs or sources of the waters were laid open, and that thus it could be discerned whence proceeds the great and inexhaustible abundance of waters which supply the rivers, and by which they always continue to flow on in their course.