refer in this text to 1 Ne. 21:22; Commentary on the Book of Mormon, Reynolds & Sjodahl, 1:281
“As the newly formed nation of Israel journeyed from Egypt to Palestine, each tribe was assigned its position in the order of march and in the place of encampment. As ranks were formed, a representative of each tribe would raise a standard or banner on a pole around which the tribes could rally and quickly find their places. (Numbers 2.) This standard or ensign which was the ancient rallying point for Israel provides an excellent symbol for the gospel to which the lost and disordered tribes of Israel will return in the latter days. The promise that the Lord would again set up his standard among the people is the promise that the gospel will be restored and that Israel will rally to it (see D&C 45:9).” (R. Millet and J. F. McConkie, Doctrinal Commentary on the Book of Mormon, 1:229)