"Sin only has power because of the promises it makes. Promises for happiness. Nobody sins out of duty. We sin because we believe the promise of sin that we will be happier. The only way to defeat the power of sin’s promise is with the power of a superior promise..We are freed from sin by the pursuit of “contentment” in God. And that contentment is rooted in a superior promise: “I will never leave you nor forsake you.” ..This is the whole secret of sanctification: The expulsive power of a new affection!"