How is one proved to be a true penitent? Said Rabbi Judah: If the opportunity to commit the same sin presents itself on two occasions, and he does not yield to it. 
Babylonian Talmud, Yoma 86b
Isaac Bashevis Singer
How is one proved to be a true penitent? Said Rabbi Judah: If the opportunity to commit the same sin presents itself on two occasions, and he does not yield to it.
