Unto Shem also, the father of all the children of Eber, the brother of Japheth the elder, even to him were children born.
Eber, meaning Hebrew, from whence sprung the Jews. Numbers 24:24.
Related Commentaries of Genesis 10:21
Genesis 10:21
21 Unto Shem also, the father of all the children of Eber, the brother of Japheth the elder, even to him were children born.