Deuteronomy 5:32

5:32 Be careful, therefore, to do exactly what the Lord your God has commanded you; do not turn right or left!

Deuteronomy 12:32

Idolatry and False Prophets

12:32 (13:1) You must be careful to do everything I am commanding you. Do not add to it or subtract from it!

Deuteronomy 17:20

17:20 Then he will not exalt himself above his fellow citizens or turn from the commandments to the right or left, and he and his descendants will enjoy many years ruling over his kingdom in Israel.

Deuteronomy 28:14

28:14 But you must not turn away from all the commandments I am giving you today, to either the right or left, nor pursue other gods and worship them.

Proverbs 4:26-27

4:26 Make the path for your feet level,

so that all your ways may be established.

4:27 Do not turn to the right or to the left;

turn yourself away from evil.