Leviticus 21:3

English Standard Version 2016

or his virgin sister (who is near to him because she has had no husband; for her he may make himself unclean).

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except for his closest relatives, his mother, his father, his son, his daughter, his brother,

He shall not make himself unclean as a husband among his people and so profane himself.

If a priest’s daughter marries a layman, she shall not eat of the contribution of the holy things.