1 Chronicles 1:19

And unto Eber were born two sons: the name of the one was Peleg; because in his days the earth was divided: and his brother’s name was Joktan.

Cross-reference

In Genesis 10:25, the same sons of Eber are named: Peleg and Joktan, with the earth divided.

In Genesis 11:16, Eber fathers Peleg at age 34, matching this genealogical record.

In Genesis 11:17, Eber lives 430 years after Peleg, continuing the same genealogy.