Common misinterpretations of Leviticus 18:18 include viewing it as a blanket ban on all sibling marriages without context, ignoring its specific focus on prohibiting a second marriage to a wife's sister during the first wife's lifetime to prevent rivalry; others mistakenly believe it endorses polygamy generally while only restricting sisters, overlooking its placement in a broader holiness code against illicit unions; or apply it legalistically to modern divorce and remarriage scenarios, conflating it with New Testament teachings on adultery and lifelong covenant marriage.
Leviticus 18:18
King James Version (1769)
18 Neither shalt thou take a wife to her sister, to vex her, to uncover her nakedness, beside the other in her life time.
Leviticus 18:18 conveys God's prohibition against a man marrying his wife's sister while the first wife is still alive, specifically to avoid vexing or rivaling her through such a union, underscoring the divine value placed on marital harmony, familial peace, and protection against jealousy in relationships, even within the cultural allowance of polygamy in ancient Israel.