Read Romans 11:16 Using Other Translations
For if the firstfruit be holy, the lump is also holy: and if the root be holy, so are the branches.
If the dough offered as firstfruits is holy, so is the whole lump, and if the root is holy, so are the branches.
And since Abraham and the other patriarchs were holy, their descendants will also be holy—just as the entire batch of dough is holy because the portion given as an offering is holy. For if the roots of the tree are holy, the branches will be, too.