According to John Welch, Jesus took steps to assure that there were no disputations, contentions, or any influences of the devil among the people at his temple sermon (see 3 Nephi 11:28-30). The Sermon at the Temple calls these the influences "of the devil, who is the father of contention" (3 Nephi 11:29). With a simple authoritative statement, Jesus asserted that "such things should be done away" (3 Nephi 11:30). This declaration fills the role of warding off the presence or influence of Satan--a standard element in ritual drama--and I assume that for this reason Satan's personal presence is not indicated anywhere again in the Sermon. One of the purposes of Jesus' teaching is to give the righteous the ability to be delivered "from evil," as the Lord's Prayer requests later in the Sermon (see 3 Nephi 13:12). The Greek for this can be read, "deliver us from the Evil One" (Matthew 6:13). Another power apparently given to the righteous is the ability to "cast out devils" (3 Nephi 14:22) although the Sermon warns that some will exercise this power unrighteously. [John W. Welch, The Sermon at the Temple and the Sermon on the Mount, pp. 40-41]