15 and ye have been very watchful of your souls, for ye have not seen any similitude in the day of Jehovah's speaking unto you in Horeb out of the midst of the fire, 16 lest ye do corruptly, and have made to you a graven image, a similitude of any figure, a form of male or female— 17 a form of any beast which 'is' in the earth—a form of any winged bird which flieth in the heavens— 18 a form of any creeping thing on the ground—a form of any fish which 'is' in the waters under the earth; 19 'And lest thou lift up thine eyes towards the heavens, and hast seen the sun, and the moon, and the stars, all the host of the heavens, and thou hast been forced, and hast bowed thyself to them, and served them, which Jehovah thy God hath apportioned to all the peoples under the whole heavens. 20 'And you hath Jehovah taken, and He is bringing you out from the iron furnace, from Egypt, to be to Him for a people—an inheritance, as 'at' this day.
Matthew Henry's Commentary on Deuteronomy 4:15-20
Commentary on Deuteronomy 4:1-23
(Read Deuteronomy 4:1-23)
The power and love of God to Israel are here made the ground and reason of a number of cautions and serious warnings; and although there is much reference to their national covenant, yet all may be applied to those who live under the gospel. What are laws made for but to be observed and obeyed? Our obedience as individuals cannot merit salvation; but it is the only evidence that we are partakers of the gift of God, which is eternal life through Jesus Christ, Considering how many temptations we are compassed with, and what corrupt desires we have in our bosoms, we have great need to keep our hearts with all diligence. Those cannot walk aright, who walk carelessly. Moses charges particularly to take heed of the sin of idolatry. He shows how weak the temptation would be to those who thought aright; for these pretended gods, the sun, moon, and stars, were only blessings which the Lord their God had imparted to all nations. It is absurd to worship them; shall we serve those that were made to serve us? Take heed lest ye forget the covenant of the Lord your God. We must take heed lest at any time we forget our religion. Care, caution, and watchfulness, are helps against a bad memory.