Only Exalted Souls Can Reproduce Spiritually

Joseph Fielding Smith, 10th President of the Mormon Church

Jesus Christ is not the Father of the spirits who have taken or yet shall take bodies upon this earth, for he is one of them. He is the Son, as they are sons or daughters of Elohim. So far as the stages of eternal progression and attainment have been made known through divine revelation, we are to understand that only resurrected and glorified beings can become parents of spirit offspring. Only such exalted souls have reached maturity in the appointed course of eternal life; and the spirits born to them in the eternal worlds will pass in due sequence through the several stages or estates by which the glorified parents have attained exaltation. —(Joseph Fielding Smith, Gospel Doctrine, p.69; See also Improvement Era, Vol. 19, p. 942)