Jacob Lorberbaum orJacob ben Jacob Moses of Lissa (1760-1832) ,[1]Hebrew:יעקב בן יעקב משה מליסא) was arabbi andposek. He is most commonly known as the Ba'al HaChavas Da'as or the Ba'al HaNesivos for his most well-known works, or as the "Lissa Rav" for the city in which he wasChief Rabbi.
Lorberbaum was the great-grandson ofTzvi Ashkenazi.[1] According to one tradition, his father,Yaakov Moshe, died before he was born. His relative,Joseph ben Meir Teomim, the rabbi ofBursztyn, brought him up. This accounts for the common name that both father and son share. Another tradition states that before he was born, his father fell ill, and dreamed that he would recover in the merit of the son that would be born to him. In the merit of his future son, the father took his name-to-be.[2] Another legend is that at hisnaming ceremony, his father was preoccupied with his study and thought they asked for his name. He studied underMeshullam Egra.[1]
Along withAkiva Eiger and Eiger's son-in-law, theMoses Sofer, Lorberbaum vehemently fought themaskilim, the proponents of theHaskalah. In 1822, he left Lissa and returned to Kalish, where he wrote many of his works. He lived there for ten years.[1][3]
His status was such that it is reported that Eiger once fainted when he was honored with anAliyah in place of Jacob. (SeeShimusha Shel Torah, Meir Tzvi Bergman).
He also published his late father's works on the Talmud, including his famous novellae to TractateKeritot
Works of Halacha include:
Chavas Daas, commentary onShulchan Aruch,Yoreh Deah, 69-201; the earlier sections ofYoreh Deah (1-68) are very briefly dealt with in the form of an introduction to the work (Lemberg, 1799;Dyhernfurth, 1810, and often since in editions of theYoreh Deah, as theVilna 1894 ed.). In it the works of earlier commentators are discussed and somewhatpilpulistically developed.
Mekor chayim, commentary onShulchan Aruch,Orach Chayim, 429 and following, with notes on the commentariesTurei Zahav andMagen Avraham; the second part contains chiddushim onKeritot (Zolkiev, 1807; Frankfort-on-the-Oder, 1813;Warsaw, 1825; Dyhernfurth, 1827)
Nesivos HaMishpat onShulchan Aruch,Choshen Mishpat, in two parts (Dyhernfurth, Lemberg; Zolkiev, 1809, 1816;Sudilkov, 1830; and often since in Lemberg editions ofShulchan Aruch,Choshen Mishpaṭ). It is said that Nesivos HaMishpat was made famous by the strong attacks in it against theKetzos HaChoshen of RabbiAryeh Leib Heller.
Kehillas Yaakov, a collection of discussions and notes on several legal points in theEven HaEzer andOrach Chayim
Derech Chaim onOrach Chayim (Zolkiev, 1828;Altona, 1831). This compendium is very popular and was frequently reprinted in the larger Hebrew prayer-books. Thesedinim are taken either from later exponents of the Law as contained in the worksTurei Zahav,Magen Abraham,Pri Megadim, etc., or from his own decisions. The sources from which he borrowed are usually indicated.
Other works by Rabbi Lorberbaum include:
Imrei Yosher, commentary on theFive Megillot (ib. 1815 and 1819).[1] The commentary on each Megillah is under a different name.
Masei Nissim, a commentary on thePesach Haggadah, with the text and a short compendium of the Passover ritual (Kitzur Dinim; Zolkiev, 1807, 1835;Minsk, 1816; Dyhernfurth, 1817, and later)
Nachalas Yaakov (Breslau, 1849), published by his cousin[4] Naphtali Z. Chachamowicz after his death, comprising sermons on theTorah Portion,halachic decisions,responsa, and his last will.[1] In this famousethical will he asked that his sons devote time every day to learn at least one page ofGemara.