Numbers 6:7

6:7 He must not defile himself even for his father or his mother or his brother or his sister if they die, because the separation for his God is on his head.

Numbers 26:59

26:59 Now the name of Amram’s wife was Jochebed, daughter of Levi, who was born to Levi in Egypt. And to Amram she bore Aaron, Moses, and Miriam their sister.