Joshua 23:6-8

6“Be very strong; be careful to obey all that is written in the Book of the Law of Moses, without turning aside to the right or to the left. 7Do not associate with these nations that remain among you; do not invoke the names of their gods or swear by them. You must not serve them or bow down to them.

8But you are to hold fast to the LORD your God, as you have until now.