Romans 11:21

19You will say then, “Branches were broken off, that I might be grafted in.”

20True; by their unbelief they were broken off, and you stand by your faith. Don’t be conceited, but fear;

21for if God didn’t spare the natural branches, neither will he spare you.

22See then the goodness and severity of God. Toward those who fell, severity; but toward you, goodness, if you continue in his goodness; otherwise you also will be cut off.

23They also, if they don’t continue in their unbelief, will be grafted in, for God is able to graft them in again.