KJV ¹⁸ Boast not against the branches. But if thou boast, thou bearest not the root, but the root thee.

TR1550 ¹⁸ μὴ κατακαυχῶ τῶν κλάδων εἰ δὲ κατακαυχᾶσαι οὐ σὺ τὴν ῥίζαν βαστάζεις ἀλλ᾽ ἡ ῥίζα σέ