In Genesis 16:11, the angel names Ishmael, and 16:15 records his birth and naming.

In Genesis 17:18, Abraham pleads for Ishmael, the son already born to him here, when promised Isaac.

Genesis 17:20 echoes the promise about Ishmael made during his birth: he will father twelve rulers and a great nation.

Genesis 21:9-21 shows the conflict arising from Hagar's son here, leading to Ishmael and Hagar's departure.

In Genesis 37:27, the Ishmaelites who buy Joseph descend from this Ishmael — the boy born here becomes their ancestor.

Genesis 17:25 notes Ishmael's age at his circumcision, linking him back to the covenant sign given to Abraham.

Genesis 17:26 mentions Abraham and Ishmael's circumcision on the same day, reaffirming Ishmael's covenant inclusion.

Genesis 25:9 records the burial of Ishmael and Isaac together, a later reconciliation of the two sons.

In Genesis 25:12, Ishmael's lineage is recorded, linking back to his birth in 16:15.

Genesis 28:9 shows Ishmael's family line continuing, with his daughter marrying Esau—extending the lineage begun here.

In Galatians 4:22, Paul explicitly cites Abraham having a son by the slave woman Hagar, referring to this account.

Galatians 4:23 identifies Ishmael, born here, as the child 'born according to the flesh'—a key for Paul's allegory.

In Galatians 4:24, Paul explicitly uses Hagar and this birth of Ishmael as an allegory for the covenant of bondage from Sinai.