One more thing: This year the Festival of Lights aligns very closely with the “Golden Evenings” which mark the final week of Western Christian Advent.
During those evenings (beginning on December 17) the “Great O” antiphons surround the canticle of Mary aka the Magnificat.
These antiphons are well known to Western Christians as the stanzas of “O Come, O Come Emmanuel”.
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The antiphon prescribed for the evening of December 18, the first night of Hannukah, is “O Adonai” which is the Hebrew word for “Lord”
O come, O come Thou Lord of Might
Who to Thy tribes on Sinai’s height
In ancient times once gave the Law
In cloud and majesty and awe.
Hanukkah is not mentioned anywhere in the Hebrew Bible. It is of course mentioned in the Apocrypha, which is part of the Orthodox Christian Old Testament.
It is also mentioned in the Gospel According to John, John 10:22-23:
22 At that time the Feast of Dedication (Hanukkah) took place at Jerusalem. It was winter.
23 and Jesus was walking in the temple, in the colonnade of Solomon.
24 So the Jews gathered around him and said to him, “How long will you keep us in suspense? If you are the Christ, tell us plainly.”