Religion that is pure and undefiled before God, the Father, is this: to visit orphans and widows in their affliction, and to keep oneself unstained from the world.  (James 1:27)

The word translated ‘religion’, is θρησκεία (thréskeia) and while the underlying sense is reverence, its usage conveys worship as expressed in ritual acts.  And it is in the context of action that James exhorts his brethren to be ‘doers of the word’, adding, ‘a doer who acts…will be blessed in his doing’.