For if God spared not the natural branches, [take heed] lest he also spare not thee.
Berean Study Bible (BSB) - Romans 11:21 >For if God did not spare the natural branches, He will certainly not spare you either.
Textus Receptus (TR) - Romans 11:21 >εἰ γὰρ ὁ Θεὸς τῶν κατὰ φύσιν κλάδων οὐκ ἐφείσατο, μήπως οὐδέ σου φείσηται.