The Remaining of Israel

All of Israel is condemned in Isaiah and yet Isaiah ends with this incredible hope that God has somehow miraculously saved all of Israel. If it weren't for Jesus we would have been like Sodom and become like Gomorrah so Paul's going to talk about a remnant now and the remnant turns out to be Jesus. All of this logic makes no sense to us competitive Americans but in Israelites an ancient society most society is a world.