Isaac is born according to the promise, Gen 21:1-3; and is circumcised when eight days old, Gen 21:4. Abraham's age, and Sarah's exultation at the birth of their son, Gen 21:5-7. Isaac is weaned, Gen 21:8. Ishmael mocking on the occasion, Sarah requires that both he and his mother Hagar shall be dismissed, Gen 21:9, Gen 21:10. Abraham, distressed on the account, is ordered by the Lord to comply, Gen 21:11, Gen 21:12. The promise renewed to Ishmael, Gen 21:13. Abraham dismisses Hagar and her son, who go to the wilderness of Beer-sheba, Gen 21:14. They are greatly distressed for want of water, Gen 21:15, Gen 21:16. An angel of God appears to and relieves them, Gen 21:17-19. Ishmael prospers and is married, Gen 21:20, Gen 21:21. Abimelech, and Phichol his chief captain, make a covenant with Abraham, and surrender the well of Beersheba for seven ewe lambs, Gen 21:22-32. Abraham plants a grove, and invokes the name of the everlasting God, Gen 21:33.