Exodus 6:20 in the King James Version
And Amram took him Jochebed his father’s sister to wife; and she bare him Aaron and Moses: and the years of the life of Amram were an hundred and thirty and seven years.
Context
19 The sons of Merari: Mahli and Mushi. These are the families of the Levites according to their generations.
20 Amram took Jochebed his father’s sister to himself as wife; and she bore him Aaron and Moses. The years of the life of Amram were one hundred thirty-seven years.
21 The sons of Izhar: Korah, and Nepheg, and Zichri.