John Gill, on Gen 17:9

“Again God said to Abraham: And thou therefore shalt keep my covenant, and thy seed after thee in their generations.”

“And God said unto Abraham, thou shalt keep my covenant therefore,.... Observe the sign or token of it, circumcision, in the manner after related: thou, and thy seed after thee, in their generations; in successive ages until the Messiah come, the end of the law for righteousness.”

Imported from an open dataset — not yet checked against the printed edition.