As a newborn baby breathes and cries, so the signs of life in a newborn Christian are faith and repentance, inhaling the love of God and exhaling an initial cry of distress. And at that point what God provides, exactly as for a newborn infant, is the comfort, protection, and nurturing promise of a mother. "If God is our father, the church is our mother." The words are those of the Swiss Reformer John Calvin ... it is as impossible, unnecessary, and undesirable to be a Christian all by yourself as it is to be a newborn baby all by yourself.
N. T. Wright