Elder William H. Smart, Conference Report, April 1901, Overflow Meeting, p.53; “My mind goes back when I contemplate this principle of obedience, to that which we learn in the Pearl of Great Price, when in the councils of heaven the foundations of the earth and the building thereof were taken into consideration. Two plans were laid before the councils and because of the bumble and obedient spirit that was shown in Jesus Christ, He was chosen to carry out that plan, which His Father approved, and Satan rebelled because the trust was given unto his more meek brother Jesus.”
Hebrews 1:5; “For unto which of the angels said he at any time, Thou art my Son, this day have I begotten thee? And again, I will be to him a Father, and he shall be to me a Son?”
Yes it’s true the Mormon Church believes Jesus and Lucifer are brothers. When they try to dodge this teaching they are in fact denouncing their “sacred scriptures” produced by Joseph Smith himself.