From the beginning of book 3 of the Odyssey in Fitzgerald's translation:
See what he did there? That's a bare outline of the liturgy of the Eucharist. The congregations face east, the people offer a sacrifice to a god by placing it on an altar and burning it, and they eat part of the sacrifice. While Homer wasn't writing a liturgical handbook, he has captured the essence of how mankind has always worshiped the divine.The sun rose on the flawless brimming sea into a sky all brazen --- all one brightening for gods immortal and for mortal men on plowlands kind with grain. And facing sunrise the voyagers now lay off Pylos town, compact stronghold of Neleus. On the shore black bulls were being offered by the people to the blue-maned god who makes the islands tremble: nine congregations, each five hundred strong, led out nine bulls apiece to sacrifice, taking the tripes to eat, while on their altars thighbones in fat lay burning for the god.
The differences: our offering is a man who is also the God being worshiped; our sacrificial victim died once and not at every offering; and we eat the victim.
Now, I was gonna scour Homer and the other ancients for other instances of divine worship and write up some more stuff in this vein, but it's 1:57 a.m.