Abram's name was changed to Abraham when God revealed himself to Abram and gave him the promise <ref>[[Ge 17:5]] Neither shall thy name any more be called Abram, but thy name shall be Abraham; for a father of many nations have I made thee. [{Abraham: that he would make him into is, Father of a great nationmultitude }]</ref>. He is called the Father of Israel because he is the literal progenitor of Jacob; named Israel.

:Abraham is not simply the father of Jacob, but the Father of the revelation of God to the people known as Israel. God made a promise to Abrahamwhich was passed through Isaac and through Jacob. <ref>[[Ge 17:9]] And God said unto Abraham, Thou shalt keep my covenant therefore, thou, and thy seed after thee in their generations.</ref>

Jacob was a grandson of Through many concubines, Abraham who obtained the covenant from God. The promise was passed to Jacob, who was renamed Israel. His twelve sons became the fathers father of many nations, but only Jacob received the twelve tribes of Israel. Sometime his name Jacob is used promise and sometimes his name Israel is usedinheritance.   Mt 3:9 And think not to say within yourselves, We have Abraham Man [[יש]] was joined by revelation [[ר]] to God [[ourאל]] father: for I say unto you, that God is able of these stones to raise up children unto Abraham; Israel.