"Be very strong; be careful to obey all that is written in the Book of the Law1 of Moses, without turning aside2 to the right or to the left.37
Do not associate with these nations that remain among you; do not invoke the names of their gods or swear4 by them. You must not serve them or bow down5 to them.
But you are to hold fast to the LORD6 your God, as you have until now.
"The LORD has driven out before you great and powerful nations;7 to this day no one has been able to withstand you.810
One of you routs a thousand,9 because the LORD your God fights for you,10 just as he promised.
So be very careful11 to love the LORD12 your God.
"But if you turn away and ally yourselves with the survivors of these nations that remain among you and if you intermarry with them13 and associate with them,1413
then you may be sure that the LORD your God will no longer drive out15 these nations before you. Instead, they will become snares16 and traps for you, whips on your backs and thorns in your eyes,17 until you perish from this good land,18 which the LORD your God has given you.