ויקרא, פרק כ׳, פסוק ט׳

The family unit and parental authority serve as the foundational pillars of human society and the preservation of the Torah. Disrespecting or harming one's parents transcends a mere personal failing; it is an active rebellion against heaven and a direct threat to the bedrock of civilization. Because God, a father, and a mother act as three equal partners in the creation of a human being, an attack on one's parents is viewed as a direct attack on the Creator Himself [רמב״ן, ספורנו, בכור שור, חזקוני].

The placement of this law, immediately following a broad command to observe God's laws and preceding the detailed punishments for sexual immorality, highlights a profound psychological progression. An individual who rebels against their parents will inevitably cast off the laws of the Torah and spiral into grave sins. Furthermore, sexual immorality directly obscures the identity of a father, creating chaotic family dynamics that can ultimately lead a child to curse their own parent [ספורנו, הטור הארוך, רש״ר הירש].

Although the directive might initially seem focused on men, it applies with equal severity to women, who face the exact same consequences for this act [אור החיים, תורה תמימה, מלבי״ם, אדרת אליהו]. The act of cursing, in this context, is not a general insult or a momentary outburst of anger. It is strictly defined as a curse pronounced using the explicit name of God [מלבי״ם, ביאור יש״ר].

The severity of the law is reserved specifically for one's certain biological parents. It does not extend to grandparents, nor does it apply in situations where the parent's identity is in doubt [תורה תמימה, חזקוני, צפנת פענח]. Furthermore, an offender does not need to curse both parents simultaneously to be held fully accountable; cursing either the father or the mother alone is enough to incur the ultimate penalty [תורה תמימה, הכתב והקבלה, ביאור יש״ר]. Because a mother and father are considered a single, unified entity in the creation of their child, an offense against one is treated as an offense against both [אור החיים].

The prohibition against cursing parents extends beyond their natural lifespans. Unlike the physical act of striking a parent, which can only occur while they are alive, uttering a curse against them remains a capital offense even after they have passed away [רש״י, מזרחי, תורה תמימה, בכור שור]. Beyond the legal parameters, there is a profound sense of horror embedded in the law, expressing shock at the sheer abomination of an individual turning against the very people who gave them life [אבן עזרא, בכור שור].

The consequence for this severe betrayal is execution by stoning, a penalty derived from parallel laws regarding occult practices [רש״י, תורה תמימה, הכתב והקבלה]. The underlying message of this specific consequence is one of absolute personal responsibility: the offender has brought this fatal outcome entirely upon themselves and bears the sole blame [רש״י, רשב״ם, שד״ל, אבן עזרא]. Some commentators offer a deeper physiological and spiritual perspective on this method of execution. In stoning, trauma to the heart stops the flow of blood, leaving it motionless within the body [הכתב והקבלה]. Spiritually, by cursing their parents, the offender severs their connection to their own source of life. Having cut off their roots, they forfeit their future and leave no continuation, ensuring their lifeblood remains trapped and ends solely with them [שפתי כהן].