Feast of David, Bishop of Menevia, Patron of Wales, c.601 Beginning a short series on the Bible: Arguments for the existence of God are very restricted; some of them are more restricted and limited than others. They do not prove beyond all question the existence of the God of the Bible. Furthermore, it must be remembered that man's mind, his thinking process, has been affected by his fall into sin. This means that there are definite limitations to God's revelation in nature. The problem is not in the revelation but in the receiver of the revelation.