For the LORD will have mercy on Jacob, and will still choose Israel, and settle them in their own land. The strangers will be joined with them, and they will cling to the house of Jacob. Isaiah 14:1
Gotta song stuck in my head. I will not inflict it on you. God has a nation stuck in his mind, and he sent Isaiah to tell of future mercy and preference. For those who believe in Jesus, we also have a special place for Israel in the heart. Jesus was born of that people by his mother Mary. As were the disciples he chose, and Paul the apostle he sent. Jesus is to us that special mercy God promised. But there must be more since most of Israel did not recognize the Messiah when he came to them. The future-ness of this prophecy indicates an ongoing mercy, choice, and joining. And who are these strangers? Joining sounds like a wedding of some sort.
Prophecy leaves many questions, but we trust that God is good.
Bucky