Paul now turns to the duty of mortification, of putting sin to death. Those that the apostle Paul lists here are the most serious of sins.
Now here is the warning and particularly for the young. Any sexual impurity in the thought life, in the viewing of images, in any kind of temptation, affects these fundamental departments of your being. Your mind is affected – it becomes tainted – but your mind is the palace of faith. It is your highest faculty, it is your reasoning faculty, and all your planning and weighing and discerning and thinking is done through the mind. Did you know that if you entertain in the least degree sexual impurity you have tainted the palace of faith, and the impurity comes in and it is powerful and it takes it over and ruins it? You are sat in front of the television and there is something which musically may charm you, but the imagery is all half-nakedness and undress and flaunting of sex. You tap your foot to it, and you like it, and you are teaching your affections to like and to excuse things that are disgusting and offensive to God. You are virtually training and conditioning your affections.
God hates covetousness; he seems to hate covetousness as much, or almost as much as he hates fornication. Now that jolts, doesn’t it? That is amazing and we have to take that extremely seriously. Why is it put in the same list? Because it is a form of worship. You are not saying that those things are divine, but you are treating them as though they were. You are worshipping them, and dreaming about them, and trusting in them; they fill your horizons and your mind. In London, after the war, the larger churches had pretty well all emptied and shut down, even though there were far more Christians in society in those days. Why was it that the central London churches, where the population was most dense, were in such dire trouble? Well, it was the migration of people – the great rush to the suburbs. Of course, there were practical problems, there was all the bombing from the war and the rehousing. But then there was at the same time this tremendous tendency for people to move to the suburbs and the outer fringes of London for a more comfortable lifestyle. Sadly, you therefore had famous churches that had had large congregations which were just closed and demolished and everything went down. There is always this tendency for people to want to do better and move to a superior house with a bigger garden and a better this and a better that; it comes before the Lord, comes before our calling. It is true that in recent times it is very difficult to get housed economically in the centre of London, and there will naturally be a tendency to be pushing out all the time for that extra bedroom as the family grows. So, there is a wholly legitimate and necessary reason why there is a gravitation outwards, but we have to be so careful that history does not repeat itself.