From Thomas Hardy's "The Oxen" written at Christmas 1924 - not quite the stuff of mincepies but a little more powerful than a parody
"Peace upon earth!" was said. We sing it,
And pay a million priests to bring it.
After two thousand years of mass
We,ve got as far as poison gas

I've just got back from a local Stop the War coalition meeting so forgive my usual lack of levity