God issues three calls to every single person. First of all, is the call to salvation. The second call is the call to sanctification. That is a call to bring our conversation, our conduct, and our character under the Lordship of Jesus Christ. The third call is the call to service, and that is a call for us to give ourselves in service to God by serving other people. In The Missionary Call, Dr. Stanley explains that to reject one of these calls is costly not only to you but to other people.