It is forbidden to swear or affirm using the name of any idol.
This mitzvah prohibits invoking the name of an idol as part of an oath, vow, or affirmation. Rambam (Hilchot Avodat Kochavim 5:10) rules that one who swears by the name of an idol transgresses this prohibition, even without direct worship. The Talmud (Sanhedrin 63a) explains that swearing in an idol’s name constitutes a form of acknowledgment of its power, undermining the exclusivity of Hashem’s sovereignty.
Sefer HaChinuch (Mitzvah 86) emphasizes that words themselves carry weight, and invoking false gods corrupts the sanctity of speech, which was given for Torah and truth. Rashi (Ex. 23:13) explains “do not let it be heard” to mean not to cause others to swear by it or even mention it in a way that dignifies it. Ramban broadens the mitzvah to include any act that legitimizes an idol, even indirectly. Midrash (Sifrei Devarim 61) sees this mitzvah as part of removing idolatry not only from practice but also from thought and language.
Commentary & Classical Explanation:
Contrast with Mitzvah 26 (Not to blaspheme):
Parallel to Mitzvah 209 (Not to swear falsely in Hashem’s Name):
Contrast with Mitzvot 209–210 (Swearing Falsely / Taking Hashem’s Name in Vain):
Sanctifying Speech in a Pluralistic World
Contracts, Business, and Legal Settings
Digital and Cultural Influence
Interfaith Sensitivity Without Compromise
Guarding Covenant Identity
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Mitzvot that prohibit worship of false gods and practices associated with idol worship.
Pertains to the power of speech—both positive and negative—including lashon hara, vows, and blessings.
Represents Emunah—the deep, inner trust in Hashem’s presence, oneness, and constant involvement in our lives. This badge symbolizes a heartfelt connection to G-d, rooted in belief even when we cannot see. It is the emotional and spiritual core of many mitzvot.
Signifies awe and reverence toward Hashem—living with awareness of His greatness and presence.
Represents the concept of spiritual intentionality, purity, and sanctity—set apart for a higher purpose.
Used for mitzvot that reflect Judaism’s foundational principles—belief in G-d, reward and punishment, prophecy, Torah from Heaven, and more. These commandments shape the lens through which all others are understood.
Mitzvot that define and deepen the relationship between a person and their Creator. These include commandments involving belief, prayer, Shabbat, festivals, sacrifices, and personal holiness — acts rooted in divine connection rather than human interaction.
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