God has bought us, and He claims a throne in each heart. Our minds and bodies must be subordinated to Him, and the natural habits and appetites must be made subservient to the higher wants of the soul. But we can place no dependence upon ourselves in this work. We cannot with safety follow our own guidance. The Holy Spirit must renew and sanctify us. In God’s service there must be no halfway work. (SpT, Series A, No. 7, p. 39).