It is always amusing to hear some of the language that non-Christians, and especially atheists, use in their assaults on the Christian faith and defenses of their own position.
Presumably the atheist thinks it is somewhat problematic and perhaps even insulting to the Christian to dismiss his or her position as “man-made.” We can set aside the obvious “problem” with using “man” this way in the current academic climate. We can also set aside that the unbeliever almost always merely asserts without argument that Christianity is man-made. We may then note that the statement as it stands is no insult or argument against Christianity anyway, for there is a sense in which Christianity is man-made. The Bible, for example, was written by men. But it does not follow that it was not also God-breathed.
But turn the apparent attempt at an objection around. What is it about unbelief and atheism in particular that is not man-made? Logic is generally considered conventional. It is man-made. Science is one of the greatest tools for advancement that the human race has ever devised. It is, of course, man-made. Morality is often thought to be subjective. It is man-made. And even where different approaches to logic, morality, andscience appear in the atheist bag of tricks they are ultimately reducible to the allegedly autonomous subject. Take away autonomy and you do not have atheism anymore. Everything in atheism is made up. By definition.
Christianity is a Man-made Religion