Deuteronomy 13:17

There shall cleave nought of the cursed thing.

Destroy the cursed thing

Israel must conquer idolatrous cities, and destroy all the spoil, regarding all that had been polluted by idolatry as an accursed thing to be burned with fire. Now, sin of all sorts must be treated by Christians in the same manner. We must not allow a single evil habit to remain. It is now war to the knife with sins of all sorts and sizes, whether of the body, the mind, or the spirit. We do not look upon this giving up of evil as deserving mercy, but we regard it as a fruit of the grace of God, which we would on no account miss. When God causes us to have no mercy on our sins, then He has great mercy on us. When we are angry with evil, God is no more angry with us. When we multiply our efforts against iniquity, the Lord multiplies our blessings. (C. H. Spurgeon.)