Joshua 23:16

When ye have transgressed the covenant of the Lord, your God, which He commanded you, and have gone and served other gods, for faithfulness to Jehovah was the essence of the covenant, and bowed yourselves to them, then shall the anger of the Lord be kindled against you, and ye shall perish quickly from off the good land which He hath given unto you, Deuteronomy 11:17. To abstain from intimacy with the world is a form of protecting our souls. Carelessness in this respect may result in the loss of our inheritance and in bringing God's wrath and curse upon us.