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 half-way work. Those who profess to serve God, and yet indulge their natural impulses, will mislead other souls. Said Christ, “Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy strength, and with all thy mind.... This do, and thou shalt live.” SpTA07 39.2
“Know ye not that they which run in a race run all, but one receiveth the prize? So run, that ye may obtain. And every man that striveth for the mastery is temperate in all things. Now they do it to obtain a corruptible crown; but we an incorruptible. I therefore so run, not as uncertainly; so fight I, not as one that beateth the air: but I keep under my body, and bring it into subjection: lest that by any means, when I have preached to others, I myself should be a castaway.” SpTA07 39.3