An idol is something that we look to for things that only God can give. Idolatry functions widely inside religious communities when doctrinal truth is elevated to the position of a false god. This occurs when people rely on the rightness of their doctrine for their standing with God rather than on God himself and his grace. It is a subtly but deadly mistake. The sign that you have slipped into this form of self-justification is that you become what the book of Proverbs calls a 'scoffer'.
Timothy KellerPutting our faith in Christ is not about trying harder; it means transferring our trust away from ourselves and resting in him.
Timothy KellerIf you add anything to Jesus as a requirement for being happy, that's your real king.
Timothy Keller[T]he main problem in life is sin, and the only solution is God and his grace. The alternative to this view is to identify something besides sin as the main problem with the world and something besides God as the main remedy. That demonizes something that is not completely bad, and makes an idol out of something that cannot be the ultimate good.
Timothy Keller