Deuteronomy 13:17-18

And there shall cleave nought of the cursed thing to thine hand: that the LORD may turn from the fierceness of his anger, and shew thee mercy, and have compassion upon thee, and multiply thee, as he hath sworn unto thy fathers; {cursed: or, devoted} When thou shalt hearken to the voice of the LORD thy God, to keep all his commandments which I command thee this day, to do {that which is} right in the eyes of the LORD thy God.