Deuteronomy 13:18

18 When thou hast heard the voice of thy Lord God, thou shalt keep all his behests which I command to thee today, that thou do that thing that is pleasing in the sight of thy Lord God. (When thou hast heard the voice of the Lord thy God, thou shalt obey all his commandments which I command to thee today, so that thou do what is right before the Lord thy God.)

Deuteronomy 13:18 Meaning and Commentary

Deuteronomy 13:18

When thou shalt hearken to the voice of the Lord thy God
Not only in this case, but in all others:

to keep all his commandments which I command thee this day:
the repetition of which he made unto them, and enjoined the observance of them in the name of the Lord:

to do that which is right in the eyes of the Lord thy God;
which they would do, if they kept the commandments of the Lord, which are holy, just, and good, and must be right in his sight because commanded by him.

Deuteronomy 13:18 In-Context

16 Also whatever thing of purtenance of household is found there, thou shalt gather it together in [the] midst of the streets thereof, and thou shalt burn it with that city, so that thou waste all things before thy Lord God, and it be a burial everlasting; it shall no more be builded. (And whatever thing of purtenance of household is found there, thou shalt gather it together in the middle of its streets, or in the town square, and thou shalt burn all those things along with that city, so that thou destroy all those things before the Lord thy God, and it shall be an everlasting burial; that city shall never be rebuilt.)

17 And nothing of that cursing shall dwell in thine hand, that the Lord be turned away from the wrath of his strong vengeance, and have mercy upon thee, and multiply thee, as he swore to thy fathers. (And then nothing of what be cursed shall be found in thy hands, and the Lord shall turn away from the anger of his strong vengeance, and shall have mercy on thee, and shall multiply thee, as he promised to thy fathers.)

18 When thou hast heard the voice of thy Lord God, thou shalt keep all his behests which I command to thee today, that thou do that thing that is pleasing in the sight of thy Lord God. (When thou hast heard the voice of the Lord thy God, thou shalt obey all his commandments which I command to thee today, so that thou do what is right before the Lord thy God.)