Romans 11:16-17

16If you offer the first piece of bread to God, then all the bread will belong to God. If the roots of a tree belong to God, then the branches will also be his.

17Israel's people are like an olive tree that a farmer has planted. But God has broken off some of that tree's branches. Then he has taken a branch from a wild olive tree. He has put that wild branch into the farmer's tree, to become part of that tree. You Gentiles are like the wild branch. Now you receive food from the root of the farmer's tree, to make you strong.