This was Adam's blessed privilege in Eden; but he missed it. The love of self took the place of the love of God. It is the aim of our blessed Lord to bring us back to that position. Perfect love is the sunlit peak to which His whole redemption tends. And perfect love would be perfect holiness. If a man were to love God and his neighbor as his first and chief and all-absorbing passion, there would be no room for sin to establish itself in his heart.
But does not this command seem altogether impracticable? It does; and it is impracticable to our mortal flesh. It is high; we cannot attain to it. Yet the very sublimity of the demand is intended to drive us to the Holy Ghost. He sheds abroad the love of God in hearts which are fully yielded to Him. If you desire that this love should be your privilege, lie down low before the flow of the River of Life, and it will fill every gully and inlet of your nature.
But, perhaps you are not of an emotional nature; you cannot gleam and flash, and shed tears, and light up with smiles. You cannot love God with your heart / Then see, the Lord says that you can love Him with your mind, i.e., with your intellect, your choice, your will. Probably this is where you have to begin. Give your mind, your will, your power of choice to God. Make Him first. Ask Him to take the helm of your life, and to control, inspire, and direct its every movement. Crown Him King. And when the will, which is the high priest of your nature, has put its crown of life on the head of Christ, who is God Incarnate, all the emotions and affections and faculties of heart and life will come in to swell the court with their homage and acclaim.