Reb Yaakov wrote many works of
Torah on
Talmud and on
Halacha (Jewish law). • Works on Talmud include: •
Toras Gittin, commentary on
Shulchan Aruch,
Even HaEzer, 119-155, and chiddushim on the Talmudic treatise
Gittin (
Frankfort-on-the-Oder, 1813; Warsaw, 1815) •
Beis Yaakov, commentary on
Shulchan Aruch,
Even HaEzer, 66-118, and on the Talmudic tractate
Ketubot (Grubeschow, 1823) • ''Emes L'Yaakov'' (on
aggadah) • He also published his late father's works on the Talmud, including his famous novellae to Tractate
Keritot • Works of Halacha include: •
Chavas Daas, commentary on
Shulchan Aruch,
Yoreh Deah, 69-201; the earlier sections of
Yoreh 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 the
Yoreh Deah, as the
Vilna 1894 ed.). In it the works of earlier commentators are discussed and somewhat
pilpulistically developed. •
Mekor chayim, commentary on
Shulchan Aruch,
Orach Chayim, 429 and following, with notes on the commentaries
Turei Zahav and
Magen Avraham; the second part contains chiddushim on
Keritot (
Zolkiev, 1807; Frankfort-on-the-Oder, 1813;
Warsaw, 1825; Dyhernfurth, 1827) •
Nesivos HaMishpat on
Shulchan Aruch,
Choshen Mishpat, in two parts (Dyhernfurth, Lemberg; Zolkiev, 1809, 1816;
Sudilkov, 1830; and often since in Lemberg editions of
Shulchan Aruch,
Choshen Mishpaṭ). It is said that Nesivos HaMishpat was made famous by the strong attacks in it against the
Ketzos HaChoshen of Rabbi
Aryeh Leib Heller. •
Kehillas Yaakov, a collection of discussions and notes on several legal points in the
Even HaEzer and
Orach Chayim •
Derech Chaim on
Orach Chayim (Zolkiev, 1828;
Altona, 1831). This compendium is very popular and was frequently reprinted in the larger Hebrew prayer-books. These
dinim are taken either from later exponents of the Law as contained in the works
Turei 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 the
Five Megillot (ib. 1815 and 1819). Naphtali Z. Chachamowicz after his death, comprising sermons on the
Torah Portion,
halachic decisions,
responsa, and his last will. In this famous
ethical will he asked that his sons devote time every day to learn at least one page of
Gemara.
Commemoration • A street in
Modi'in Illit is named after his book
Nesivos HaMishpat, and a street in
Kfar Hassidim is named after him. == References ==