Too Many Errors
Rabbi Bunam sought to cause a sinner to improve his ways. He invited him to a game of chess and, while playing, the rabbi made an obviously false move. The man was about to take advantage of the error, but the rabi asked him to excuse the mistake. Soon the rabbi made another wrong move. This time his opponent refused to overlook it. The rabbi turned to him and said: "You refuse to conoine two wrong moves in a game of chess, yet you expect the Lord to pardon you regardless of the number of your transgressions."
The sinner was stricken with remorse and promised to mend his conduct.
Source: Siach Sarfei Kodesh
