my bible does not have those words in it....I think that this doxology was added by the protestant revolutionaries.
Actually ... and ironically ... those words were part of the Catholic version in the early years. They were removed and the Protestants out them back in. And those words are said by the priest during the Our Father at every Mass.
I wish I could provide a link for that info but I can’t seem to find it. I heard it on EWTN radio one afternoon.