Romans 11:21

21IfεἰforγὰρὁGodθεὸςtheτῶνaccording toκατὰnatureφύσινbranchesκλάδωνnotοὐκsparedἐφείσατο,neitherοὐδὲyouσοῦwill He spareφείσεται.

For if God did not spare the natural branches, perhaps He will not spare you.