The theological Skeptic does not necessarily hold that one should only assent to absolutely certain propositions. Some theological Skeptics, however, will defend atheism on the grounds that there is much more support for the probability that God does not exist than for the probability that God exists. A theist might disagree and think the probability is greater for theism. An agnostic, as distinguished from a theological Skeptic, would hold that neither theism nor atheism is more probable than the other. Theological Skepticism is based upon the nature of theological claims and the nature of the human mind.
Theological claims transcend the limits of human knowledge.
It is for this reason that some Skeptics assert that revelation from God is necessary. Ordinary skeptics may be atheists and be completely unaware of the arguments of theological Skepticism. The ordinary skeptic may be an atheist simply because he or she perceives little, if any, evidence for the belief in God. In addition to providing philosophical doubts about metaphysics, some Skeptics aimed their arguments at specific types of claims. Basically, Hume argues that for the same reason it is reasonable to avoid the vicious dog trying to bite us, it is reasonable to reject miraculous claims.