Romans 11:20-23

20True enough; they were broken off because of unbelief, but you stand by faith. Do not be arrogant, but beware,

21because if God did not spare the natural branches, he will not spare you either.

22Therefore, consider God’s kindness and severity: severity toward those who have fallen but God’s kindness toward you — if you remain in his kindness. Otherwise you too will be cut off.

23And even they, if they do not remain in unbelief, will be grafted in, because God has the power to graft them in again.