Israel is a family of people grown large. They have become several nations. The real problem seems to be that Israel is not the Jews and the Jews are not Israel. The first time the word "Jew(s)" occurs in the scripture is in II Kings 16:6 and the context here is that Israel is at war with the Jews.
Israel is...
Gen 48:16 The Angel which redeemed me from all evil, bless the lads;
and let my name be named on them, and the name of my fathers Abraham and Isaac; and let them grow into a multitude in the midst of the earth.
Ephraim and Manasseh.
The Jews (Judah) are a separate tribe and only one of 12 (13)...
Gen 49:8 Judah, thou art he whom thy brethren shall praise: thy hand shall be in the neck of thine enemies; thy father's children shall bow down before thee.
Gen 49:9 Judah is a lion's whelp: from the prey, my son, thou art gone up: he stooped down, he couched as a lion, and as an old lion; who shall rouse him up?
Gen 49:10 The sceptre shall not depart from Judah, nor a lawgiver from between his feet, until Shiloh come; and unto him shall the gathering of the people be.
Gen 49:11 Binding his foal unto the vine, and his ass's colt unto the choice vine; he washed his garments in wine, and his clothes in the blood of grapes:
Gen 49:12 His eyes shall be red with wine, and his teeth white with milk.
Whereas Ephraim and Manasseh (the two tribes that carried the name Israel forward) had these promises...
Gen 49:22 Joseph is a fruitful bough, even a fruitful bough by a well; whose branches run over the wall:
Gen 49:23 The archers have sorely grieved him, and shot at him, and hated him:
Gen 49:24 But his bow abode in strength, and the arms of his hands were made strong by the hands of the mighty God of Jacob; (from thence is the shepherd, the stone of Israel
Gen 49:25 Even by the God of thy father, who shall help thee; and by the Almighty, who shall bless thee with blessings of heaven above, blessings of the deep that lieth under, blessings of the breasts, and of the womb:
Gen 49:26 The blessings of thy father have prevailed above the blessings of my progenitors unto the utmost bound of the everlasting hills: they shall be on the head of Joseph, and on the crown of the head of him that was separate from his brethren.
Until one begins to understand that there were 12 (actually 13, Ephraim and Manasseh each received an inheritance in the land and were the sons of Jacob) tribes not just one known as the Jews (Judah), he cannot properly understand much of scripture.