3. The Rise of Nauvoo.--While the Saints were being expelled from the state the Prophet Joseph and several other leading elders were imprisoned in Liberty jail, Clay county, Missouri, having been betrayed into the hands of their enemies by the treachery of false brethren. They were held on false charges of murder, arson and treason. They finally made their escape from their enemies and joined the body of the church, which had found a temporary resting place in the city of Quincy and vicinity, in Illinois. Shortly afterwards they settled at Commerce, in Hancock county, in the same state. The church purchased several large tracts of land at this place of Dr. Galland, a Mr. White, Hubbard, Wells, Hotchkiss, and others; and soon from the wilderness and bogs of Commerce--[See note 3, end of section]--rose the city of Nauvoo--meaning The Beautiful; "carrying with it also," says the Prophet Joseph, "the idea of rest." 4. Although both Joseph and the Saints saw some of their best days in Nauvoo, there was not much "rest" for them there, especially for the former. The toil and anxiety of founding a city, establishing manufactures, publishing a paper, and converting the surrounding country into fields and gardens; sending the apostles to preach the gospel in foreign lands, being all the time tormented by their enemies in Missouri and Illinois, kept the church, and especially the Prophet Joseph, busy during the whole time they remained in Nauvoo. Here the translation of the Book of Abraham was published. [See note 4, end of section.] A magnificent temple was constructed in which to carry on the work of salvation for the dead, and in which the living could receive those washings and anointings, endowments and {394} sealings, necessary to prepare them for their entrance into and their exaltation in heaven. 5. Celestial Marriage Introduced.--It was in Nauvoo also that the prophet introduced celestial marriage,--the marriage system which obtains in celestial worlds. It consists of the eternity of the marriage covenant, that is, the marriage covenant between a man and his wife is made for time and all eternity, and being sealed by that power of the priesthood which binds on earth and in heaven, the covenant holds good in heaven as well as on earth; and by reason of it men will have claim upon their wives, and wives upon their husbands, in and after the resurrection. Celestial marriage may also include a plurality of wives.