Notice in these verses that Isaac is passing on the 'birthright' Blessing to his son Jacob, which God gave to Abraham? This is why Jehovah is called 'The God of Abraham, the God of Isaac, and the God of Jacob'

Exodus 3:6; Moreover He said,” I am the God of thy father, the God of Abraham, the God of Isaac, and the God of Jacob.” And Moses hid his face; for he was afraid to look upon God.

 Matt.22:32; ‘I am the God of Abraham, the God of Isaac, and the God of Jacob?’ God is not the God of the dead, but of the living.

Acts 3:13; The God of Abraham, the God of Isaac, and the God of Jacob, the God of our fathers, hath glorified His son Jesus;

 From Jacob will begin the twelve tribe branch of Israel. It is important to remember that the term 'Israel' and 'Israelite' is not associated with anyone before this Promise God gave to Jacob through his father Isaac. Many times the term Israelite is used even of 'the man Adam' by the unlearned in God's Word. The Israelites began with the offspring of Jacob, i.e., Israel.

'Israel shall be thy name'

       Genesis 32 gives us an account of how Jacob wrestled with an angel and 'prevailed'. The angel blessed Jacob and gave him a new name:

Gen 32:28   And he said, "Thy name shall be called no more Jacob, but Israel: for as a prince hast thou power with God and with men, and hast prevailed."

        This Angel is giving Jacob a bit of information about his new name. It wasn't official yet, for God had not talked to him in the manner of Isaac and Abraham's promise.

Gen 35:9   And God appeared unto Jacob again, when he came out of Padan-aram, and blessed him.
10    And God said unto him, "Thy name is Jacob: thy name shall not be called any more Jacob, but Israel shall be thy name:" and He called his name Israel.
11    And God said unto him, "I am GOD ALMIGHTY: be fruitful and multiply; a nation and a company of nations shall be of thee, and kings shall come out of thy loins;
12    And the land which I gave Abraham and Isaac, to thee I will give it, and to thy seed after thee will I give the land."
13    And God went up from him in the place where He talked with him.

       This makes it official. Here God is giving the same 'birthright' Blessing of the 'seed of Promise' that He gave to Abraham and Isaac, finally to Jacob. Therefore, the new name of the 'Promise' became 'Israel'. As the name Jacob will still be used in The Word later, the new National Name of Israel is the word to look for when dealing with the 'Birthright' blessings of God's original promise to Abraham. Nor does this new 'name' of 'Israel' only refer to the Nation of Israel today, but certain others also, as we will discover throughout this study.

       Notice especially the verse of Genesis 35:11 above. Who are all these 'company of nations' God is telling Jacob he would be the father of?