How could the “church of Luther,” that great teacher of the gospel, have ever come to such a place? The answer is that the true gospel, summed up by Bonhoeffer as costly grace, had been lost. On the one hand, the church had become marked by formalism. That meant going to church and hearing that God just loves and forgives everyone, so it doesn’t really matter much how you live. Bonhoeffer called this cheap grace. On the other hand, there was legalism, or salvation by law and good works. Legalism meant that God loves you because you have pulled yourself together and are trying to live a good,
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Timothy Keller wrote this
