131 If there arise in the midst of thee a prophet, or a dreamer of dreams, and he give thee a sign or a wonder, 2 and the sign or the wonder come to pass, whereof he spake unto thee, saying, Let us go after other gods, which thou hast not known, and let us serve them; 3 thou shalt not hearken unto the words of that prophet, or unto that dreamer of dreams: for Jehovah your God proveth you, to know whether ye love Jehovah your God with all your heart and with all your soul. 4 Ye shall walk after Jehovah your God, and fear him, and keep his commandments, and obey his voice, and ye shall serve him, and cleave unto him.
Matthew Henry's Commentary on Deuteronomy 13:1-4
Commentary on Deuteronomy 13:1-5
(Read Deuteronomy 13:1-5)
Moses had cautioned against the peril that might arise from the Canaanites. Here he cautions against the rise of idolatry among themselves. It is needful for us to be well acquainted with the truths and precepts of the Bible; for we may expect to be proved by temptations of evil under the appearance of good, of error in the guise of truth; nor can any thing rightly oppose such temptations, but the plain, express testimony of God's word to the contrary. And it would be a proof of sincere affection for God, that, notwithstanding specious pretences, they should not be wrought upon the forsake God, and follow other gods to serve them.