Cross reference
Romans 11:24
24 For if you were cut out of that which is by nature a wild olive tree, and were grafted contrary to nature into a good olive tree, how much more will these, which are the natural branches, be grafted into their own olive tree?
Romans 11:17-18
17 But if some of the branches were broken off, and you, being a wild olive, were grafted in among them, and became partaker with them of the root and of the richness of the olive tree;
18 don't boast over the branches. But if you boast, it is not you who support the root, but the root supports you.
Romans 11:30
30 For as you in time past were disobedient to God, but now have obtained mercy by their disobedience,