Why did God rename Jacob "Israel"?

Why did God rename Jacob "Israel"?
We can gain a greater understanding by looking at the meaning in Hebrew and Aramaic.
Strong's Concordance:
h3478. יִשְׂרָאֵל iyśrâ’êl; he will rule as God; Jisrael, a symbolical name of Jacob; also (typically) of his posterity: — Israel.
AV - Israel, Israelites; Israel = "God prevails"
the second name for Jacob given to him by God after his wrestling with the angel at Peniel, the name of the descendants and the nation of the descendants of Jacob, the name of the nation until the death of Solomon and the split, the name used and given to the northern kingdom consisting of the 10 tribes under Jeroboam; the southern kingdom was known as Judah, the name of the nation after the return from exile

We can see the reason is because the descendants of Jacob, the true sons of God, the overcomers, the saints, the elect, the remnant Bride, the spiritual sons of Abraham, will rule and reign in the final millennium of this age as the Body and God as the Head (II Corinthians 5:21, Revelation 3:21, 21:7). The name Israel is a type for the people of God whom He has chosen from the foundation of the world (Ephesians 1:4).

In Psalm 83 it says:
For behold, Your enemies make a tumult;
And those who hate You have lifted up their head (leader, chief or band of rulers - hmm Vatican and their cohorts, the puppet leaders of the UN, EU, US, Russia, etc, etc?).
They have taken crafty counsel against Your people (we know that the sons of God are those who follow the Spirit - Romans 8:14),
And consulted together against Your sheltered (hidden by covering - His merciful covering ie; the mercy seat - Galatians 3:27, Leviticus 16:15, I Peter 1:1-2, Hebrews 9:5) ones.
They have said, “Come, and let us cut them off from being a nation (gôy - a mass of people, usually of non-Hebrew descent or of the descendants of Abraham - interesting that both apply here considering what Jesus said in John 8: Jesus said to them, “39 If you were Abraham’s children, you would do the works of Abraham. 40 But now you seek to kill Me, a Man who has told you the truth which I heard from God. Abraham did not do this. 41 You do the deeds of your father...the devil...),
That the name of Israel may be remembered no more.”
For they have consulted together with one consent;
They form a confederacy against You"

We can see a fulfillment of this prophesy in two ways today. One is the literal attempt of the Vatican to seize control of the physical Holy Land, as they have been trying for centuries (some may argue that they already have through deceptive Hegelian and Machiavellian means, possibly so they can usher in a New World Order) and another in trying to suppress God's people from carrying out His will by spreading the true Gospel message (which the powers behind the Vatican, the spiritual forces of Babylon have done very successfully for millennia through direct and indirect means). These two methods essentially carry the same spiritual meaning as Satan is trying to accommodate every possible avenue in his rebellion. Although he attempts to divide us and therefore conquer us it is even more imperative that we strengthen each other in the love and light of God, even through the trials and tribulations the world will have us walk through in these increasingly troublesome end days. May our Lord and Savior bless us all with the strength of His peace and truth as He holds us fast to our faith like an anchor in the storm. Before His saints can rule and reign with Him they will be tried like gold in the fire.