Mormon Doctrine, pg. 548; “Most of these rites and ceremonies, as illustrated by baptism and celestial marriage, are essential to salvation and exaltation in the kingdom of God; some of them, such as the blessing of children and the dedication of graves, are not ordinances of salvation, but are performed for the comfort, consolation, and encouragement of the saints.”
Hebrews 10:10-14; “By the which will we are sanctified through the offering of the body of Jesus Christ once for all. 11 And every priest standeth daily ministering and offering oftentimes the same sacrifices, which can never take away sins: 12 But this man, after he had offered one sacrifice for sins for ever, sat down on the right hand of God; 13 From henceforth expecting till his enemies be made his footstool. 14 For by one offering he hath perfected for ever them that are sanctified.”
In an earlier entry the Mormon teachings claimed the gospel life is free.