Deuteronomy 7

These are the seven nations whose lands the Lord promised to give to the children of Israel when they left Egypt. We must accept the fact that, according to the apostle, all the things that happened to them in a figure were written for our instruction.… The reason that they are said to be much more numerous is that there are more vices than virtues. Therefore in the list they are counted as seven nations, to be sure, but when it is a question of destroying them they are said to be innumerable.

When you have received lawful authority, do all this. Where authority has not been given to us, we don't do it; where it has been given, we don't fail to do it. Many pagans have these abominations on their estates. Do we march in and smash them? The first thing we try to do is to break the idols in their hearts. When they too become Christians, they either invite us in to perform this good work or else they get in first with it before us. The thing we have to do now is pray for them, not get angry with them.