To win our unswerving devotion why doesn't God communicate with us directly? The holy writings of the Hebrew, Christian, and Muslim faiths reveal that God is obsessed with getting us to believe in him. Why then does he do so little to make his presence known? How can we believe in his existence unless we have evidence of it? The “evidence” we do have comes from only the select few to whom he purportedly speaks: prophets, preachers, priests, pastors, popes, and patriarchs. He, who has a matchless capacity to transmit his message instantaneously and simultaneously to everyone in the world, has chosen a sadly piecemeal and unsure mode of communication.
Religious commentator Adrian Reddy notes,
In addition to being extremely slow and inefficient, the use of prophets suffers from the drawback that each prophet has to establish his own credibility. In ancient times, as now, there [has been] no way…for a person to distinguish reliably between a real prophet and a false one and, as a result, false prophets confuse the picture even more. So the question is: why would God risk the rejection of His words by choosing a method of revelation which lacks credibility because it is so obviously open to fakery and self-delusion?