Where do you go for power to live as a Christian?

"In Christian repentance we do not 'take our sins' to Mt. Sinai, but to Mt. Calvary. Sinai represents only the law of God, and makes us fear God will reject us. But Calvary represents both the law of God and his commitment to save us no matter what--even if his Son has to fulfill and pay our debt to the law. 'Going to Sinai' with our sins means we use the painful fear of rejection to motivate us to change. 'Going to Calvary' with our sins means we use gratitude for his love to motivate us to change. The free love of Christ means that in disobedience, you have not just broken the rules, but spurned the One who lost his Father rather than lose you." --Tim Keller