And unto Eber were born two sons: the name of one was Peleg; for in his days was the earth divided; and his brother’s name was Joktan.
From the genealogical account of Shem's descendants after the flood.
Genesis 10:25
King James Version (public domain)
Traditionally attributed to Moses · c. 13th century BC · The Pentateuch — Genesis, Exodus, Leviticus, Numbers, and Deuteronomy — is traditionally attributed to him
Context
23And the children of Aram; Uz, and Hul, and Gether, and Mash.
24And Arphaxad begat Salah; and Salah begat Eber.
25And unto Eber were born two sons: the name of one was Peleg; for in his days was the earth divided; and his brother’s name was Joktan.
26And Joktan begat Almodad, and Sheleph, and Hazarmaveth, and Jerah,
27And Hadoram, and Uzal, and Diklah,