Green’s Dictionary of Slang

doxology-works n.

also doxology mill
[SE doxology, the praising of God]

a place of Christian worship.

[US]‘Mark Twain’ Innocents at Home 332: You are the head clerk of the doxology works next door.
[UK]Farmer & Henley Sl. and Its Analogues.
[Aus]Dead Bird (Sydney) 1 Feb. 3/2: They arrived opposite the Doxology Mill just at the time the faithful and pious were leaving.