As told by Joseph Smith, in May, 1833, John the Apostle said of God, Jesus Christ, "And I, John, saw that he received not of the fulness at first, but continued from grace to grace, until he received a fulness; and thus he was called the Son of God, because he received not of the fulness at first."[A] [Footnote A: Doctrine and Covenants, 93:12-14.] [Sidenote: Man will develop until he becomes like God.] Man, likewise, is to develop until, in comparison with his present condition, he becomes a God. For instance, in speaking of the salvation to which all men who live correct lives shall attain, the Prophet says, "For salvation consists in the glory, authority, majesty, power and dominion which Jehovah possesses;"[A] and in another place, "Then shall they be Gods, because they have no end; therefore shall they be from everlasting to everlasting, because they continue; then shall they be above all, because all things are subject unto them. Then shall they be Gods, because they have all power."[B] [Footnote A: Doctrine and Covenants, Lectures on Faith, 7:8.] [Footnote B: Doctrine and Covenants, 132:20.] That this is not a sudden elevation, but a gradual growth, is evident from many of the writings of Joseph Smith, of which the following are illustrations. "He that receiveth light and continueth in God, receiveth more light, and that light groweth brighter and brighter until the perfect day."[A] "For if you keep my commandments you shall receive of his fulness, and be glorified in me as I am in the Father; therefore, I say unto you, you shall receive grace for grace."[B] [Footnote A: Ibid., 50:24.] [Footnote B: Ibid., 93:20.] In various sermons Joseph Smith enlarged upon the universal principle of advancement, but few of them have been preserved for us. In a sermon delivered in April, 1844, the following sentences occur, "God himself was once as we are now, and is an exalted Man, and sits enthroned in yonder heavens. You have got to learn how to be Gods yourselves, and to be kings and priests to God, the same as all Gods have done before you; namely, by going from one small degree to another, and from a small capacity to a great one; from grace to grace, from exaltation to exaltation."[A] [Footnote A: Contributor, vol. 4, pp. 254 and 255.] [Sidenote: Joseph Smith anticipated science in the statement of the law of evolution.]