Cross reference
Numbers 26:59
59 The name of Amram's wife was Jochebed, the daughter of Levi, who was born to Levi in Egypt: and she bore to Amram Aaron and Moses, and Miriam their sister.
Exodus 6:20
20 Amram took Jochebed his father's sister to himself as wife; and she bore him Aaron and Moses: and the years of the life of Amram were a hundred and thirty-seven years.
Exodus 2:1-2
1 A man of the house of Levi went and took a daughter of Levi as his wife.
2 The woman conceived, and bore a son. When she saw that he was a fine child, she hid him three months.
Leviticus 18:12
12 You shall not uncover the nakedness of your father's sister: she is your father's near kinswoman.