"All beings who have bodies have power over those who have not. The devil has no power over us only as we permit him." (Joseph Smith, TPJS, Section 4, p. 181)

"Before foundation of the earth in the Grand Council that the spirits of all men were subject to oppression, and the express purpose of God in giving them a tabernacle was to arm them against the power of Darkness." (Joseph Smith, Discourse, [19 January 1841], as Reported by William P. McIntire's Notebook, p. 7)

"God is good and all his acts are for the benefit of inferior intelligences— God saw that those intelligences had not power to defend themselves against those that had a tabernacle therefore the Lord calls them together in council and agrees to form for them tabernacles so that he might gender the spirit and the tabernacle together so as to create sympathy for their fellow man— for it is a natural thing with those spirits that have the most power to bear down on those of lesser power, so we see the devil is without a tabernacle and the Lord has set bands to all spirits." (Ibid. p. 18)