The call of God is not a call to serve Him in any particular way. My contact with the nature of God will shape my understanding of His call and will help me realize what I truly desire to do for Him. The call of God is an expression of His nature; the service which results in my life is suited to me and is an expression of my nature. The call of the natural life was stated by the apostle Paul— “When it pleased God . . . to reveal His Son in me, that I might preach Him [that is, purely and solemnly express Him] among the Gentiles . . . .”