I take occasion from this precept to remark, how needful it must be for the heart to be established in grace, that we may not be carried about with diverse and strange doctrines. Alas! if our religion be not of the heart, there can be no stability, no dependence in our faith. But if I love the LORD JESUS because I really and truly know him: this is life eternal. LORD! confirm me in this faith. John 17:3.
Deuteronomy 12:29-32
29 When the LORD thy God shall cut off the nations from before thee, whither thou goest to possess them, and thou succeedestd them, and dwellest in their land;
30 Take heed to thyself that thou be not snared by following them, after that they be destroyed from before thee; and that thou enquire not after their gods, saying, How did these nations serve their gods? even so will I do likewise.
31 Thou shalt not do so unto the LORD thy God: for every abomination to the LORD, which he hateth, have they done unto their gods; for even their sons and their daughters they have burnt in the fire to their gods.
32 What thing soever I command you, observe to do it: thou shalt not add thereto, nor diminish from it.