According to Christianity.com (https://www.christianity.com/wiki/bible/what-is-the-meaning-of-israel-in-the-bible.html)

What is the meaning of Israel?

"Israel is a name used 2,431 times in the Bible. The primary thread throughout the Bible is the redemption of humanity, and Israel is at the center of that story. Israel is the Hebrew name Yisra'el, meaning God contends, or one who struggles with God. Those identified with that name are God’s people, chosen for a purpose. And that is what Israel ultimately means: God’s people."

Q is saving the Israel for last?

Israel = "God's People" and ALL of US ARE God's People!

Q is saving ALL OF US.... and... We are saving Q!

WE are ALL CHOSEN FOR A PURPOSE because WWG1WGA!