Isaiah 63:13 - Clarke's commentary and critical notes on the Bible

That led them through the deep, as an horse in the wilderness, that they should not stumble? That led them through the deep - As a beast goeth down into the valley - In both these verses there is an allusion to the Israelites going through the Red Sea, in the bottom of which they found no more inconvenience than a horse would in running in the desert, where there was neither stone nor mud; nor a beast in the valley, where all was plain and smooth.