Many think that once a person has been converted, he is finished with the difficult work of repentance and he can then rest... However, this is an extremely dangerous deception. It is precisely at the point of conversion that the true fight begins in him. When Christ says, ‘Strive to enter through the narrow gate,’ He is referring to the entire progress of the Christian life until death.—C. F. W. Walther, God Grant It!, p. 263.