Deuteronomy 12:2

12:2 You must by all means destroy all the places where the nations you are about to dispossess worship their gods – on the high mountains and hills and under every leafy tree.

Deuteronomy 12:18

12:18 Only in the presence of the Lord your God may you eat these, in the place he chooses. This applies to you, your son, your daughter, your male and female servants, and the Levites in your villages. In that place you will rejoice before the Lord your God in all the output of your labor.