In John 10:1-21 Jesus told he is the good shepherd and all what that means.
After Sarah’s death, in Genesis 25 Abraham married his concubine Ketorah, who had already borne him six children. Before his death he sent them all away with ample gifts and provisions but his inheritance he gave to Isaac. Isaac and Ishmael buried Abraham, and then Ishmael’s genealogy is written down. Finally is told the story of Jacob and Esau, and how Esau sold his birthright for a bowl of lentil stew and some bread.
Genesis 26 tells of Isaac and Rebekah, how Isaac too said Rebekah was his sister, like father, like son. In spite of that lie God protected them, and the rest of the chapter deals with the eternal Mideast dispute: Water rights.