Rabbi Levi Yitzchok of Berditchev (1740-1809), also known as the Berdichever Rabbi was a rabbi and Hasidic leader. He was one of the main disciples of the Maggid of Mezritch. Reb Levi Yitzchok was known as the Meiletz Yoshar / מיליץ יושר for the Jewish people, because it was believed that he could intercede on their behalf before Hashem. Known for his compassion for every Jew, he was therefore one of the most beloved leaders of Eastern European Jewry. He authored the Hasidic classic Kedushas Levi, which is a commentary on many Jewish religious books and laws, and is arranged according to the weekly Parshah.
Rabbi Levi Yitzchak composed some popular Hasidic religious folk songs, including Dude'le and A din Toyre mit Gott. The Yiddish prayer Gott Fun Avraham which many Jewish men and women recite at the close of the Shabbas, is erroneously attributed to him. He died on the 25th of Tishrei, 5570 (1809) and is buried in the old cemetery in Berdychiv, Ukraine.