"In the matter of reforming things, as distinct from deforming them, there is one plain and simple principle; a principle which will probably be called a paradox. There exists in such a case a certain institution or law; let us say, for the sake of simplicity; a fence or gate erected across a road. The more modern type of reformer goes gaily up to it and says, "I don't see the use of this; let us clear it away." To which the more intelligent type of reformer will do well to answer: "If you don't see the use of it, I certainly won't let you clear it away. Go away and think. Then, when you can come back and tell me that you do see the use of it, I may allow you to destroy it."
This paradox rests on the most elementary common sense. The gate or fence did not grow there. It was not set up by somnambulists who built it in their sleep. It is highly improbable that it was put there by escaped lunatics who were for some reason loose in the street. Some person had some reason for thinking it would be a good thing for somebody. And until we know what the reasons was, we really cannot judge whether the reason was reasonable. It is extremely probable that we have overlooked some whole aspect of the question, if something set up by human beings like ourselves seems to be entirely meaningless and mysterious. There are reformers who get over this difficulty by assuming that all their fathers were fools; but if that be so, we can only say that folly appears to be a hereditary disease. But the truth is that nobody has any business to destroy a social institution until he has really seen it as an historical institution. If he knows how it arose, and what purposes it was supposed to serve, he may really be able to say that they were bad purposes, or that they have since become bad purposes, or that they are purposes which are no longer served. But if he simply stares at the thing as a senseless monstrosity that has somehow sprung up in his path, it is he and not the traditionalist who is suffering from an illusion. We might even say that he is seeing things in a nightmare." (Chesterton, G. K., and Dale Ahlquist. In Defense of Sanity: The Best Essays of G.K. Chesterton. Ignatius Press, 2011. pages 173-174)
The principle illustrated here shows the impact faith in God has on our perspective and worldview. If we believe God created man and woman and instituted marriage between a man and a woman, we cannot reform these institutions without risk of deforming them. While it is true people do change over their lives, our basic need for God and His wisdom does not change. Having been illuminated by the word of God and born again by the Holy Spirit, we have learned that without God we are hopelessly adrift in the dark. To follow our hearts may be to disregard God and the wisdom He has passed down through generations. How blessed we are to have such a sure foundation in our God Who provides wisdom for abundant life and to be transformed by faith in Jesus into the people He intended us to be from the beginning. Staying the course requires constant reformation--not of God's institutions but of ourselves--being sanctified by God's grace.