“You might say, “Branches were broken off so that I could be joined to their tree.”
That is true. But those branches were broken off because they did not believe. And you continue to be part of the tree only because you believe.
Don’t be proud, but be afraid. If God did not let the natural branches of that tree stay, he will not let you stay if you stop believing.
And if the Jews will believe in God again, he will accept them back. He is able to put them back where they were.”
https://bible.com/bible/406/rom.11.19-21.ERV