The god of the Bible is omnipotent, omniscient, and omnibenevolent. This is a logical fallacy, but Jehovah's Witnesses's explanation that he has "selective knowledge" is even more ridiculous. By that logic, Jehovah is omnipotent, omniscient, omnibenevolent, and ignorant.
Also, where is he? He is said to be a personal god living only in Heaven, but he is described as omnipresent and "roaming about the earth". If he is omnipresent AND he works through people on earth, then logically God is a metaphor for something inside each of us. Yet Jehovah's Witnesses deny this and say that He Who Causes to Become is a personal god who lives in Heaven, an invisible spirit realm never to be identified. (Though the Pleiades was offered as one possibility before it was rejected, and I've recently heard hypotheses that he lives in an alternate universe outside of the Big Bang, which is equally refutable because that would limit his power in the scope of the universe containing him and he is supposed to be omnipotent.) But he is described as omnipresent and roaming about the earth to show his power... and so is Satan.