Leviticus 21:1-3

New International Version

Rules for Priests

21 The Lord said to Moses, “Speak to the priests, the sons of Aaron,^(A) and say to them: ‘A priest must not make himself ceremonially unclean^(B) for any of his people who die,^{(C) 2} except for a close relative, such as his mother or father,^(D) his son or daughter, his brother, ³ or an unmarried sister who is dependent on him since she has no husband—for her he may make himself unclean.^(E)