Proper Authority and Ministering to the People

Acts 19:1-12; 20:7-12

5 priesthood ordinances Paul performed:

-baptism
-gift of Holy Ghost
-healed the sick
-sacrament
-raised a man from the dead

Because the Corinth saints hadn't been baptized by the correct authority, Paul re-baptized them under proper authority and also gave them the gift of the Holy Ghost. This example of Paul re-baptizing those saints should answer the question to members and nonmembers alike that unless the proper priesthood authority was used to baptize you, you need to be re-baptized and receive the Holy Ghost in order to have one of the saving ordinances done for yourself. Paul bestowed the gift of the Holy Ghost on those saints by the laying on of hands through proper priesthood authority that he himself received from God.

John 20:1, 19

The saints all met together on the first day of the week to break bread and partake of the sacrament. The verses above give us evidence to believe that the day of the Sabbath was changed because that was the same day that Christ rose from the dead and was resurrected after being in the tomb for three days.