Cross reference
Romans 11:24
24 For if you were cut out of a field olive-tree, and against the natural use were united to a good olive-tree, how much more will these, the natural branches, be united again with the olive-tree which was theirs?
Romans 11:17-18
17 But if some of the branches were broken off, and you, an olive-tree of the fields, were put in among them, and were given a part with them in the root by which the olive-tree is made fertile,
18 Do not be uplifted in pride over the branches: because it is not you who are the support of the root, but it is by the root that you are supported.
Romans 11:30
30 For as you, in time past, were not under the rule of God, but now have got mercy through their turning away,