A Commandment and a Promised Blessing On the 7th, Polly Knight wife of Joseph Knight, Sen., died; she had been in failing health while on the westward journey. The same day the Prophet received a revelation of commandment and blessing to the Saints, in which they were admonished again to keep the commandments of the Lord. Their course of action was pointed out for them with a statement that all who had come up to the land to keep the commandments should be blessed; if they lived they should inherit the earth; if they died they should rest in the mansions of the Father. On the Lord's day they were to rest from all labor and assemble in the house of prayer to partake of the sacrament and confess their sins (Doc. and Cov. Sec. 59). The Return to Kirtland On the 9th day of August Joseph Smith and the elders who were to return, started on their journey back to Kirtland. They traveled down the Missouri River towards St. Louis. On the third day out they encountered some of the dangers common on these waters. At a place called McIlwaine's Bend, William W. Phelps, in open vision, saw the destroyer in his power, riding upon the waters. The next morning the Prophet Joseph received a revelation in confirmation of the vision of Elder Phelps. Dangers on the Waters The Lord revealed (Doc. and Cov. Sec. 61) to Joseph Smith the great dangers that would be upon the waters in these latter days. "Behold, I, the Lord, in the beginning blessed the waters, but in the last days, by the mouth of my servant John, I cursed the waters. Wherefore, the days will come that no flesh shall be safe upon the waters. . . . I, the Lord, have decreed, and the destroyer rideth upon the face thereof, and I revoke not the decree." It was further stated that the time would come when none would dare go upon the waters but those who were pure in heart, and the elders were counseled to travel by other means than by the rivers, that their faith fail not. Object of the Mission to Zion On the 27th day of August Joseph Smith, Oliver Cowdery and Sidney Rigdon arrived in Kirtland; others of the elders had previously arrived. Their mission had been fulfilled. They had gone to Missouri for the purpose of receiving definite knowledge concerning the location of the land and site for the future city of Zion; to dedicate the land as the "inheritance of the Saints," also to choose and dedicate a spot for the building of the temple. Those who were to remain were instructed in their duties and given commandments by which they were to be governed in that land and upon which their inheritances, and those of the Saints who should follow after, might be made secure. Notes 1. Isaiah 2:1-4. 2. Isaiah 60:12-22. The following reference to Zion or the New Jerusalem, is from the prophecy of Ether; Book of Mormon, Ether, 13th chapter: