Deuteronomy 6:17-19

Keep with care the orders of the Lord your God, and his rules and his laws which he has given you; And do what is upright and good in the eyes of the Lord your God, so that it may be well for you and you may go in and take for your heritage that good land from which the Lord undertook by an oath to your fathers, To send out from before you all those who are against you.