The sand — That need not make rocks for walls unto it, but can give a check to it by so small a matter as the sand.
Related Commentaries of Jeremiah 5:22
Jeremiah 5:22
22 Fear ye not me? saith the LORD: will ye not tremble at my presence, which 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?