Abraham is often referred to as the father of believers. A patriarch, Abraham becomes a father to his wife Sarah at a very old age.
In the Bible, Abraham agrees to sacrifice his only son. God stops him and substitutes his son with a ram, promising Abraham that he will be the father of an innumerable people.
Along with Moses, he is depicted in the typological stained glass of Redemption at the Cathedral of Saint-Etienne in Châlons-en-Champagne.

This association is also found at the center of the composition on the portable altar of Stavelot, in the upper left register:
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