I am currently engaged in an “Old Testament Challenge” being led by Fr. John Peck at the Preacher’s Institute. I often think that the model for the worship of our Church dates back to Exodus and Leviticus, when the priesthood of Aaron was instituted. Of course, it dates back farther than that. In fact, we see perhaps the earliest example in Genesis 15:17 when God is making the first covenant with Abram. After Abram prepared the sacrifices we see a smoking fire pot and torch (Masoretic OT) passing between the sacrifices. The smoking fire pot would best be rendered in modern parlance as a censer. As Fr. Peck pointed out on his Facebook page, the LXX text is rather more trinitarian, indicating a flame, a smoking “furnace”, and lamps of fire. Interesting stuff, and that’s only part way through Genesis!