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Business Transactions with Churches in Halacha
Jewish law prohibits certain business dealings with non-Jewish religious institutions, particularly around their festivals, out of concern that profits will support their worship. These sources examine when commercial transactions—such as purchasing services or advertising space—constitute forbidden benefit to an idolatrous institution and under what circumstances such transactions may or may not be permitted.
אָסוּר לָשֵׂאת וְלָתֵת עִמָּהֶן לִפְנֵי אֵידֵיהֶן
Advertising With Non-Jewish Religious Institutions
Sources explore the halachic permissibility of commercial transactions with churches and other houses of worship, drawing on the biblical prohibition of lo techanem (not granting free favor to idolaters) and its Talmudic interpretation. The discussion examines when such transactions are forbidden, permitted, and how prior acquaintance affects the application of these rules.
לֹא תִּתֵּן לָהֶם חֵן
Shabbat: From Creation to Observance
A comprehensive exploration of Shabbat across Jewish tradition, tracing its origins in creation and the Decalogue through rabbinic law and spiritual meaning. The sources examine the biblical foundations, the 39 categories of forbidden labor, and Shabbat's role as a foretaste of the World to Come.
זָכוֹר אֶת־יוֹם הַשַּׁבָּת לְקַדְּשׁוֹ
Shabbat: From Creation to Practice
This collection traces Shabbat from its biblical foundations in creation and the Ten Commandments through rabbinic interpretations of its spiritual meaning and practical obligations. Sources explore Shabbat as both a commandment rooted in divine rest and exodus, and as a day of delight, honor, and elevated spiritual experience in Jewish life.
וְקָרָאתָ לַשַּׁבָּת עֹנֶג
Proper Kavanah for Shemoneh Esrei
Jewish sources across the ages define kavanah (intention) during the Amidah prayer as sincere focus on the meaning of words, awareness of standing before God, and removal of distracting thoughts. From biblical commands to concentrate the heart before God through rabbinic, medieval, and modern teachings, these sources establish kavanah as essential to prayer itself.
כָּל תְּפִלָּה שֶׁאֵינָהּ בְּכַוָּנָה אֵינָהּ תְּפִלָּה
Kavanah in the Amidah Prayer
Sources from Talmud through modern Jewish thought explore the essential mental intention (kavanah) required during Shemoneh Esrei, emphasizing concentration on words, removal of distracting thoughts, and awareness of standing before the Divine Presence.
כָּל תְּפִלָּה שֶׁאֵינָהּ בְּכַוָּנָה אֵינָהּ תְּפִלָּה
Why We Observe Shabbat
These sources explore the theological and spiritual foundations for Shabbat observance, presenting it as a commemoration of creation, a sign of the covenant between God and Israel, a gift from the Divine, and a connection to spiritual transcendence. The sources span biblical commandments, rabbinic interpretation, and medieval philosophy.
זָכוֹר אֶת־יוֹם הַשַּׁבָּת לְקַדְּשׁוֹ
Shabbat Across Jewish Tradition
This collection traces Shabbat from its biblical foundations through rabbinic interpretation and halachic codification. Sources explore both the theological dimensions of the day—rooted in Creation and the Exodus—and the practical laws governing its observance, alongside the spiritual significance and rewards associated with honoring Shabbat.
זָכוֹר אֶת־יוֹם הַשַּׁבָּת לְקַדְּשׁוֹ
The Gift of Shabbat: Torah and Talmudic Foundations
These sources establish Shabbat as a central institution in Jewish life, tracing its origin to God's rest on the seventh day of Creation and presenting it through multiple frameworks: as a divine gift to Israel, as a foretaste of the World to Come, and as a commandment grounded in both Creation and the Exodus. The sources span biblical law, rabbinic interpretation, and codified practice.
מַתָּנָה חֲמוּדָה בִּיד יִשְׂרָאֵל
Divine Being and Existence in Jewish Thought
These sources explore the nature of God's existence as the foundation of all reality, from biblical revelation through medieval philosophy and Hasidic teaching. They examine how divine being sustains creation and how understanding God's necessary existence forms the cornerstone of Jewish metaphysics and spirituality.
יְסוֹד הַיְסוֹדוֹת וְעַמּוּד הַחָכְמוֹת לֵידַע שֶׁיֵּשׁ שָׁם מָצוּי רִאשׁוֹן
The Mitzvah and Meaning of Shabbat
These sources trace Shabbat from its biblical foundation in God's rest after creation, through the Torah's twin commandments to remember and guard the day, to the rabbinic elaboration of honoring and delighting in Shabbat through practical acts of sanctification. Together they present Shabbat as both a divine gift and a cornerstone of Jewish observance.
זָכוֹר אֶת־יוֹם הַשַּׁבָּת לְקַדְּשׁוֹ
The Soul's Pursuit of the Divine
These sources explore the spiritual concept of pursuing God as an all-consuming orientation of the soul. They range from biblical expressions of longing for the Divine to rabbinic and medieval teachings on cleaving to God through love, study, and devotion, culminating in Hasidic understandings of the soul's innate yearning to return to its Source.
כְּאַיָּל תַּעֲרֹג עַל־אֲפִיקֵי־מָיִם כֵּן נַפְשִׁי תַעֲרֹג אֵלֶיךָ אֱלֹהִים