What has He told us? He has told us, and it is recorded in the revelations contained in the New Testament, that in the latter days He would send His angel flying through the midst of heaven, having the everlasting Gospel to preach to those who dwell on the earth. That angel has flown, the Gospel is delivered, the kingdom is established, and Zion has to be built up.

– Brigham Young, 4/17/1870