If God is the absolute truth and being then God could not possibly communicate in a way that every human would agree upon since it would be communicating in a vague and mystic sense. Not to mention if God can communicate with humans, it would appear to be less than perfect, since God could not theologically speaking associate with sin, and if humans are sinful, how can God associate or communicate with humans at all?
Knowledge existing in and of itself is not irrational except as you reach and grasp for ultimate meaning in things outside yourself first instead of first looking inward.
2nd sentence is incongruent and the rest falls from there. A part of God's necessary ontological worth is that he is all knowing. Logically anything that exists can be explained by God, and that includes communicating to humans. Christians succeed in this understanding because they believe God created man in the image of God.
Actually if God were to communicate with humans, as I believe the Bible does, it needs to be done so in a perfect manner.
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