Exodus 18:24

24.So Moses hearkened. Here is a. remarkable instance of modesty, that Moses is not indisposed to submit himself to the counsel of his father-in-law. For although Jethro was his superior in age and in degree of affinity, in other respects he was far inferior to him. This yielding, then, of Moses to his authority, lays down a rule for all the greatest and most excellent Doctors, that they should not refuse lo receive the admonitions of those whom they admit to teach rightly, although they are not of such high dignity. For Cyprian (202) truly declares that none is a good doctor who is not also docile. It is probable that the old man immediately returned home, not in contempt, or from his dislike to labor or fatigue, but (203) on account of his age; but we shall hereafter see in its proper place that his son remained in the camp.