17. And if some of the branches be broken off, and thou, being a wild olive-tree, art ingrafted among them, and with them partakest of the root and fatness of the olive-tree;
18. Boast not against the branches. But if thou boastest, thou bearest not the root, but the root thee.
19. Thou wilt say then, The branches were broken off, that I might be ingrafted.
20. Well; because of unbelief they were broken off, and thou standest by faith. Be not high-minded, but fear:
21. For if God spared not the natural branches, take heed lest he also spare not thee.