The Prophet tells us here, that he had again roused the leaders as well as the common people; for except God frequently repeats his exhortations, our alacrity relaxes. Though then they had all attended to God’s command, it was yet necessary that they should be strengthened by a new promise: for men can be encouraged, and their indifference can be corrected, by no other means, to such a degree, as when God offers and promises his help. This, then, was the way in which they were now encouraged, I am with you. And experience sufficiently shows, that we never really and from the heart obey, except when we rely on his promises and hope for a happy success. For were God only to call us to our work, and were our hope doubtful, all our zeal would doubtless die away. We cannot then devote our services to God, except he supports and encourages us by promises. We also see, that it is not enough that God should speak once, and that we should once receive his word, but there is need that he should rouse us again and again; for the greatest ardor grows cold when no goads are applied.