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.
Gen 35:10 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.
2. The physical nation of Israelites (Gen 47:27; 1 Sam 24.20)
Gen 47:27 And Israel dwelt in the land of Egypt, in the country of Goshen; and they had possessions therein, and grew, and multiplied exceedingly.
1 Sam 24:20 And now, behold, I know well that thou shalt surely be king, and that the kingdom of Israel shall be established in thine hand.
3. The northern ten tribes opposed to the two southern tribes (1 Sam 11:8; 2 Ch 11:1)
1Sa 11:8 And when he numbered them in Bezek, the children of Israel were three hundred thousand, and the men of Judah thirty thousand.
2 Ch 11:1 When Rehoboam arrived at Jerusalem, he mobilized the men of Judah and Benjamin—180,000 select troops—to fight against Israel and to restore the kingdom to himself.
4. Spiritually, all of God’s people, both Jew and Gentile (Eph 2:11-13; 19)
Ephesians 2:11-13 Wherefore remember, that ye being in time past Gentiles in the flesh, who are called Uncircumcision by that which is called the Circumcision in the flesh made by hands; That at that time ye were without Christ, being aliens from the commonwealth of Israel, and strangers from the covenants of promise, having no hope, and without God in the world: But now in Christ Jesus ye who sometimes were far off are made nigh by the blood of Christ.
Eph 2:19 Now therefore ye are no more strangers and foreigners, but fellowcitizens with the saints, and of the household of God;
5. Jesus Christ Himself (Exo 4:22; Isa 42:1; Isa 49:3; Hos 11:1; Mat 2:15; Mat 12:18 quoting Isa 42:1)
Exo 4:22 And thou shalt say unto Pharaoh, Thus saith the LORD, Israel is my son, even my firstborn:
Isa 42:1 Behold my servant, whom I uphold; mine elect, in whom my soul delighteth; I have put my spirit upon him: he shall bring forth judgment to the Gentiles.
Isa 49:3 And said unto me, Thou art my servant, O Israel, in whom I will be glorified.
Hosea 11:1 “When Israel was a child, then I loved him, and called my son out of Egypt.
Mat 2:15 And was there until the death of Herod: that it might be fulfilled which was spoken of the Lord by the prophet, saying, Out of Egypt have I called my son.
Mat 12:18 Behold my servant, whom I have chosen; my beloved, in whom my soul is well pleased: I will put my spirit upon him, and he shall shew judgment to the Gentiles.