Romans 11:16

11:16 If the first portion of the dough offered is holy, then the whole batch is holy, and if the root is holy, so too are the branches.

Romans 11:18

11:18 do not boast over the branches. But if you boast, remember that you do not support the root, but the root supports you.

Romans 15:12

15:12 And again Isaiah says, “The root of Jesse will come, and the one who rises to rule over the Gentiles, in him will the Gentiles hope.”