Isaac is one of the three patriarchs of the Israelites and an important figure in the Abrahamic religions, including Judaism, Christianity, and Islam. Isaac first appears in the Book of Genesis, later adopted by the Hebrew tradition of the Torah, in which he is considered to be the son of Abraham and Sarah, the father of Jacob and Esau, and the grandfather of the twelve tribes of Israel.
Isaac digging for the wells, imagined in a Bible illustration (c. 1900)
The Akedah (Binding), mosaic on the floor of Beit Alfa Synagogue
The birth of Esau and Jacob, as painted by Benjamin West
Tomb in the Cave of the Patriarchs, Hebron
The patriarchs of the Bible, when narrowly defined, are Abraham, his son Isaac, and Isaac's son Jacob, also named Israel, the ancestor of the Israelites. These three figures are referred to collectively as "the patriarchs", and the period in which they lived is known as the patriarchal age.
Abraham, Sarah and Hagar, imagined here in a Bible illustration from 1897.
Isaac blessing his son, as painted by Giotto di Bondone
Jacob Wrestling with the Angel by Eugène Delacroix
Cave of the Patriarchs, Hebron