Romans 11:24

He here shows the probability, as well as possibility, of the Jews conversion, because God hath done that which is more unlikely: q.d. If the Gentiles, which were a kind of wild olive branches, were grafted into a good olive tree, the church of God, which is contrary to nature, seeing men use to graft a good scion into a wild stock, (as an apple into a crab), and not a wild scion into a good stock; how much more shall the Jews, which are the natural branches, yea, branches of that olive tree into which the Gentiles are now ingrafted, be grafted into their own olive tree, to which formerly they did belong! According to the custom of grafting which was common amongst them, to graft one tree upon another of the same kind; and grounded on Leviticus 19:19.