'Grafted' in the Bible

Now if some of the branches were broken off, and you, a wild olive shoot, were grafted in among them and participated in the richness of the olive root,

Then you will say, "The branches were broken off so that I could be grafted in."

And even they -- if they do not continue in their unbelief -- will be grafted in, for God is able to graft them in again.

For if you were cut off from what is by nature a wild olive tree, and grafted, contrary to nature, into a cultivated olive tree, how much more will these natural branches be grafted back into their own olive tree?