17 And if some of the branches were broken off, and you, being a wild olive tree, were grafted in among them, and with them partake of the root and fatness of the olive tree;
18 Boast not against the branches. But if you boast, you bear not the root, but the root you.
19 You will say then, The branches were broken off, that I might be grafted in.
20 Well; because of unbelief they were broken off, and you stand by faith. Be not arrogant, but fear:
21 For if God spared not the natural branches, take heed lest he also not spare you.
22 Behold therefore the goodness and severity of God: on them who fell, severity; but toward you, goodness, if you continue in his goodness: otherwise you also shall be cut off.
23 And they also, if they abide not still in unbelief, shall be grafted in: for God is able to graft them in again.