Some of the natural branches have been broken off. You Gentiles are like a wild olive branch that has been grafted onto the tree with the other branches. Now you’re enjoying the life-giving sap of the olive tree root.
After all, weren’t you cut from a wild olive tree and grafted onto an olive tree that was being cultivated in an orchard? You didn’t come from the same kind of tree. How much more easily will the natural branches be grafted back onto their own olive tree!