Tshuvah Sources

We learned there in a mishna that Rabbi Eliezer says: Repent one day before your death. Rabbi Eliezer’s students asked him: But does a person know the day on which he will die? He said to them: All the more so this is a good piece of advice, and one should repent today lest he die tomorrow; and by following this advice one will spend his entire life in a state of repentance. And King Solomon also said in his wisdom: “At all times your clothes should be white, and oil shall not be absent from upon your head” (Ecclesiastes 9:8), meaning that a person always needs to be prepared.

Rabbi Nahman said in Rabbi Samuel's name: 'Behold, it was good' refers to the Good Desire; 'And behold, it was very good' refers to the Evil Desire. (It only says 'very good' after man was created with both the good and bad inclinations, in all other cases it only says 'and God saw that it was good') Can then the Evil Desire be very good? That would be extraordinary! But without the Evil Desire, however, no man would build a house, take a wife and beget children; and thus said Solomon: 'Again, I considered all labour and all excelling in work, that it is a man's rivalry with his neighbour.' (Ecclesiastes 4:4).

§ The verse states: “And the Lord passed by before him, and proclaimed” (Exodus 34:6). Rabbi Yoḥanan said: Were it not explicitly written in the verse, it would be impossible to say this, as it would be insulting to God’s honor. The verse teaches that the Holy One, Blessed be He, wrapped Himself in a prayer shawl like a prayer leader and showed Moses the structure of the order of the prayer. He said to him: Whenever the Jewish people sin, let them act before Me in accordance with this order. Let the prayer leader wrap himself in a prayer shawl and publicly recite the thirteen attributes of mercy, and I will forgive them.

The verse continues: “The Lord, the Lord,” and it should be understood as follows: I am He before a person sins, and I am He after a person sins and performs repentance, as God does not recall for him his first sins, since He is always “God, merciful and gracious” (Exodus 34:6).

Rav Yehuda said: A covenant was made with the thirteen attributes that they will not return empty-handed, meaning that if one mentions them, he will certainly be answered, as it is stated in this regard: “Behold, I make a covenant” (Exodus 34:10).

§ Rabbi Yoḥanan said: Great is repentance, for it tears up the sentence issued against a person, as it is stated: “Make the heart of this people fat, and make their ears heavy, and smear over their eyes; lest they see with their eyes, and hear with their ears, and understand with their heart, and they will return, and be healed” (Isaiah 6:10), implying that if indeed they return and repent, they will be healed from all their sins.