Charles Ellicott Commentary Jeremiah 5:22

"Fear ye not me? saith Jehovah: will ye not tremble at my presence, who have placed the sand for the bound of the sea, by a perpetual decree, that it cannot pass it? and though the waves thereof toss themselves, yet can they not prevail; though they roar, yet can they not pass over it." — Jeremiah 5:22 (ASV)

Which have placed the sand ... —The greatness of Jehovah is shown by the majesty of His work in nature. As in Job 38:8-11, so, probably, here also there is something of the wonder of one to whom, as dwelling in an inland village, the billows breaking on the shore was an unfamiliar sight. Here was the sign that even the forces which seem wildest and least restrained are subject to an overruling law. Even the sand, which seems so shifting, restrains the surging waters.