The thing which our fathers call a ball, or director or our fathers called it Liahona, which is, being interpreted, a compass; and the Lord prepared it. Alma 37:38 Alma 37:38
What was the prophecy of Moses that Joseph Smith referred to in verse 55 of his "translation" of Matthew?
No one knows. There is no such "prophecy of Moses" in any of the Hebrew Scriptures.
And thus cometh the end of the wicked, according to the prophecy of Moses, saying: They shall be cut off from among the people; but the end of the earth is not yet, but by and by. Genesis 1:55