"Because the Divine could not manifest itself fully by creating another deity, he created the great diversity of things so that the perfection lacking to one would be supplied by the others and that the whole universe together would participate in and manifest the divine more than any single being whatsoever."
Other Sources
Inspired Writings of Non-Mormons | Summa Theologica, I, q. 47, a. l.
Published in
Connection Among All Living Souls