Genesis 10:25

And to Heber were born two sons, the name of the one, Phaleg, because in his days the earth was divided, and the name of his brother Jektan.

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.

To Eber were born two sons. The name of the one was Peleg, for in his days the earth was divided. His brother’s name was Joktan.