And the LORD visited Sarah as he had said, and the LORD did unto Sarah as he had spoken.
For Sarah conceived, and bare Abraham a son in his old age. ... And Abraham called the name of his son that
was born unto him, whom Sarah bare to him, Isaac. Genesis 21:1-3
Isaac intreated the LORD for his wife, because she was barren: and the LORD was intreated of him, and Rebekah his wife conceived. ...
and his name was called Jacob. Genesis 25:21-26
The sons of Leah; Reuben, Jacob's firstborn, and Simeon, and Levi.... Genesis 35:23
the names of the sons of Levi according to their generations; Gershon, and Kohath, and Merari. Exodus 6:16
The sons of Kohath; Amram, and Izhar, and Hebron, and Uzziel. Exodus 6:18
And Amram took him Jochebed his father's sister to wife; and she bare him Aaron and Moses. Exodus 6:20