Genesis 10:21

And to Sem himself also were children born, the father of all the sons of Heber, the brother of Japheth the elder.

Unto Shem also, the father of all the children of Eber, the brother of Japheth the elder, even to him were children born.

Children were also born to Shem (the elder brother of Japheth), the father of all the children of Eber.