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שׁדי shaday — Shaddai, “Irresistible, able to destroy, and by inference to create, Almighty.” שׁדד shādad…

In the selfsame day. —Hebrew, In the bone of this day, and so in Genesis 17:23 . In the circumcising of the household tog…

In the selfsame day was Abraham circumcised, and Ishmael his
son .
] This is repeated…

Abraham and all his family were circumcised, thereby receiving the token of the covenant and distinguishing themselves from other families that had…
Albert Barnes
AlbertBarnes