In Genesis 36:3, Nebaioth appears as the brother of Basemath, Esau's wife — the same firstborn of Ishmael listed here.

In Genesis 28:9, Mahalath is named as sister of Nebaioth, daughter of Ishmael — the same firstborn son listed in this genealogy.

1 Chronicles 1:29-31 repeats this exact list of Ishmael's sons in the Chronicler's genealogy — a direct re-identification of the same lineage.

Jeremiah 49:28 prophesies against Kedar, a prominent Ishmaelite tribe mentioned in the Genesis genealogy.

In Isaiah 42:11, Kedar and Sela's inhabitants cry out joyfully — this Ishmaelite people joins in praising God from the wilderness.

In Isaiah 60:7, Kedar's flocks are gathered for God's temple — the second son of Ishmael becomes a symbol of nations bringing offerings.

In Isaiah 21:16-17, Kedar's warriors are diminished by judgment — this descendant of Ishmael becomes a symbol of waning military strength.

Isaiah 21:17 completes the oracle against Kedar — few warriors remain. Different context from the genealogy, same descendant.

Ezekiel 27:21 lists Kedar as a trading partner with Tyre, showing their commercial role in the ancient world.