Isaac

In the Genesis narrative Isaac is born to Abraham and Sarah in their old age following a divine promise; his name, meaning 'he will laugh' or 'he laughs', encodes Abraham and Sarah's laughter at the promise of a late-in-life child. He is circumcised on the eighth day as part of the covenantal sign, is subjected in youth to the episode in which Abraham binds him on Mount Moriah to sacrifice him before an angel halts the act and a ram is provided, and later becomes husband to Rebekah and father of twins Esau and Jacob. Later traditions include Isaac in genealogies that link Abraham to later Israelite figures and, in Christian scripture (Matthew), to the genealogy of Jesus. Modern scholarly discussion (not canonical) has raised the hypothesis that some aspects of Isaac's figure may preserve an earlier local ancestor veneration in the Beersheba region.

The supplied sources give no detailed physical description. Narrative notes record life-stage details: he was an infant circumcised on the eighth day, a youth at the time of the binding episode, and in old age he is described as having grown old and become blind. No specifics about stature, complexion, or clothing are provided in the cited summaries.

Isaac is portrayed as a human patriarch rather than possessing supernatural powers. His roles and abilities are those of a social and familial actor: he inherits property, reopens and digs wells, negotiates with local rulers (making a covenant with Abimelech), fathers children, confers a paternal blessing that determines inheritance, and participates in covenantal ritual (circumcision). He is also the subject of divine testing in the binding narrative, in which an angel intervenes on his behalf.