'Branches' in the Bible

Now if the first-fruit be holy, the lump also; and if the root be holy, the branches also.

Now if some of the branches have been broken out, and thou, being a wild olive tree, hast been grafted in amongst them, and hast become a fellow-partaker of the root and of the fatness of the olive tree,

boast not against the branches; but if thou boast, it is not thou bearest the root, but the root thee.

Thou wilt say then, The branches have been broken out in order that I might be grafted in.

if God indeed has not spared the natural branches; lest it might be he spare not thee either.