John Gills Exposition of the Bible Commentary - Exodus 18:18
Thou wilt surely wear away ,.... His natural strength and animal spirits, and so his flesh; he feared his constant application and attendance to business would impair his health, break his constitution, and bring him into a consumption. Moses was naturally of a strong and vigorous constitution; for, forty years after this, even to the time of his death, his natural force was not abated; or "fading thou wilt fade", or, "falling thou wilt fall" F18 נבל תבל "marcescendo marcesses",... read more
Matthew Henry's Complete Commentary - Exodus 18:13-27
Here is, I. The great zeal and industry of Moses as a magistrate. 1. Having been employed to redeem Israel out of the house of bondage, herein he is a further type of Christ, that he is employed as a lawgiver and a judge among them. (1.) He was to answer enquiries, to acquaint them with the will of God in doubtful cases, and to explain the laws of God that were already given them, concerning the sabbath, the man, etc., beside the laws of nature, relating both to piety and equity, Exod. 18:15.... read more