Numbers 26:59

Amram's wife was Jochebed, the daughter of Levi, whom he had in Egypt: by Amram she had Moses and Aaron and their sister Miriam.

Exodus 6:20

And Amram took Jochebed, his father's sister, as wife; and she gave birth to Aaron and Moses: and the years of Amram's life were a hundred and thirty-seven.

Exodus 2:1-2

Now a man of the house of Levi took as his wife a daughter of Levi.

Leviticus 18:12

You may not have sex connection with your father's sister, for she is your father's near relation.

Treasury of Scripture Knowledge did not add

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain