Our churches teach that the history of saints may be set before us so that we may follow the example for their faith and good words, according to our calling. For example, the emperor may follow the example of David in making war to drive away the Turk from his country. For both are kings. But the Scriptures do not teach that we are to call on the saints to to ask the saints for help. Scripture sets before us the one Christ as the Mediator, Atoning Sacrifice, High Priest, and Intercessor. He is to be prayed to. He has promised that He will hear our prayer. This is the worship that He approves above all other worship, that He be called upon in all afflictions. "If anyone does sin, we have an advocate with the Father" (I John 2:1).
~BOC, AC, XXI, 1-4