18 December: O Adonai
/Particular titles or names come to greater prominence in different cultures or denominations. I associate the Messianic title "Lord" with southern Pentecostal churches and similar, and the appearance of "Lord" in church names bears this out.
O Adonai, et Dux domus Israel, qui Moysi in igne flammae rubi apparuisti, et ei in Sina legem dedisti: veni ad redimendum nos in brachio extento. O Lord and Ruler of the House of Israel, who appeared to Moses in the flame of the burning bush and gave him the law on Sinai: Come and redeem us with outstretched arm.
And for good measure, here is St Catherine Monastery, Sinai.