10. For the priests which bare, etc If we are ordered to halt while others are hastening, we know how easily a feeling of irksomeness is produced, because we seem to be occupying an inferior position. The priests, therefore, are justly praised for their patience in calmly remaining alone at their post, while the whole people were swiftly hurrying on to the further bank. For they might have begun to feel doubtful lest the heaps of water which were suspended over their heads might suddenly melt away and engulf them. They therefore evinced their piety no less by remaining there than by venturing to proceed into the opposing current. Thus, in the first place, they displayed their ready obedience, and in the second their constancy, making it manifest that they had not obeyed from mere impulse. For their firmness of purpose, which is praised, must have had its origin in a living principle. It was a proof of modesty that they attempted nothing rashly, but regulated their whole procedure as it were in strict conformity to the word of God.
Although it is probable that Joshua was instructed by a new message from heaven as to what was necessary to be done, he is, however, said to have followed what Moses had commanded. By this I understand that Moses had carefully enjoined him to hang on the lips of God, that he was thoroughly obedient to the injunction, and accordingly was always observant of what was pleasing to God. In short, the command of Moses here mentioned was general, but God gave special injunctions to Joshua as each circumstance arose.