Joshua 23:6-13

6Therefore, be very strong to keep and to do all that is written in the Book of the Law of Moses, turning aside from it neither to the right hand nor to the left,

7that you may not mix with these nations remaining among you or make mention of the names of their gods or swear by them or serve them or bow down to them,

8but you shall cling to the Lord your God just as you have done to this day.

9For the Lord has driven out before you great and strong nations. And as for you, no man has been able to stand before you to this day.

10One man of you puts to flight a thousand, since it is the Lord your God who fights for you, just as he promised you.

11Be very careful, therefore, to love the Lord your God.

12For if you turn back and cling to the remnant of these nations remaining among you and make marriages with them, so that you associate with them and they with you,

13know for certain that the Lord your God will no longer drive out these nations before you, but they shall be a snare and a trap for you, a whip on your sides and thorns in your eyes, until you perish from off this good ground that the Lord your God has given you.