" You might say, “If I were a Christian I’d be going around pursued by guilt all the time!” But we all are being pursued by guilt because we must have an identity and there must be some standard to live up to by which we get that identity. Whatever you base your life on—you have to live up to that. Jesus is the one Lord you can live for who died for you—who breathed his last breath for you. Does that sound oppressive? "

― Timothy J. Keller , The Reason for God: Belief in an Age of Skepticism