Necessity for final salvation
Mormonism teaches that water-baptism is absolutely necessary for final salvation.
 Baptism for the dead
- See main article: Baptism for the dead
- "The purpose of baptism is to free the soul from sin and bring it back into God's pure presence, where nothing unclean can come. Sin must not only be repented of: it must be washed away. The soul must be cleansed of it, and baptism is the cleansing process. Water, of course, cannot, in and of itself, wash away sin; but obedience, typified by the water, can and does, when the baptism is lawfully and properly performed." - Orson F. Whitney, "The Purpose of Baptism" page 8. (Published by the Church as a Missionary tract)