Heaven/heavens
The singular vs. plural is confusing all over the Bible. Genesis I:1 uses the Hebrew "ha'shamayim" which is plural. In the Psalms, you can have heaven or heavens, and there is a verse in I Chron., in the prayer of King Solomon at the dedication of the Temple, which has "the heaven of heavens". What are you to make of that? Where are the resident Biblical & liturgical experts? Father Steve?