Romans 11:20-22

20Granted. But they were broken off because of unbelief, and you stand by faith. Do not be arrogant, but tremble.

21For if God did not spare the natural branches, he will not spare you either. 22Consider therefore the kindness and sternness of God: sternness to those who fell, but kindness to you, provided that you continue in his kindness. Otherwise, you also will be cut off.