These are rich words, with a great deal of help, exhortation and encouragement for us. First of all, there is no sanctification without union with God; and the reverse is true, there is no experience of union with God without sanctification.
Are some people watching images they should not be watching, stirring bodily appetites and the old nature, letting it have free reign. What a disaster that will be if we do. May your body and its desires and containment and suppression of its lusts and its wrong inclinations be preserved all the way to the end of life. For others it is immodesty for some people. Be very careful young people of immodesty, preening and promotion of the body. May your body be preserved, devoted to Christ in all modesty and purity and chastity and loyalty.
Is it not astonishing? The word ‘sanctification’ means separation from fleshly things, and from the world, and yet in these days, even many Christians are taking up the world, and immersing themselves increasingly in it, and adopting worldly entertainment and worldly recreation. You cannot be sanctified with that.
Why does Paul mention spirit and soul separately as if they are different? Man is composed of two parts generally speaking – the material and the immaterial. The material is the biological body. The immaterial is the part which no dissection can uncover and that is the soul or the spirit. Spirit and soul are distinguished, because they suggest different functions of the soul, different faculties of the soul. When we speak of the spirit we speak of that aspect of the soul which communicates with God, in prayer or hearing the Word and being sensitive to it and convicted by it. But when you consider the soul, the inner man communicating with the world around, our thoughts, our power of reason, our conscience, all these other aspects we put under the heading of the soul.