Mormonism and Moral Absolutes. The Mormon god is an exalted man of flesh and blood. He not eternal, nor is he absolute. Thus, he fails as the absolute personal, precondition for the obligation men feel to be moral.

Mormonism and Laws of Logic. Since the Mormon god is not eternal, that means he can’t account for invariant (i.e., unchanging) laws of logic. If they are not based on an unchanging eternal nature, their invariance today is inexplicable.

~ Keith Thompson

This is sufficient refutation, but it isn’t as robust as it should be. The ethical issue for Mormonism is that the Euthyphro dilemma is killer to Pagan type gods. Is a thing good because the gods say it is good, or do the gods say it’s good because it is good?

Mormonism is difficult to maintain because it is committed to Materialism. This is from a prominent Mormon writing:

[7] There is no such thing as immaterial matter. All spirit is matter, but it is more fine or pure, and can only be discerned by purer eyes; [8] We cannot see it; but when our bodies are purified we shall see that it is all matter.
(Doctrine & Covenants, 131)

The laws of Logic, Universals, and Mathematics are abstract and not material. These things can’t be grounded in particular physical objects. That would falsify the materialist thesis that Mormonism rests upon.

If we are purely material beings, then why expect that our mind is reliable? If we exist in a causal nexus of material things, why suppose these causal chains are directed at the truth?

Mormonism commits itself to the Bible, but it contradicts Paul’s teachings on Justification and Biblical monotheism. Isaiah 43:10 states that Pagan thoughts about gods being formed after one another are false. That contradicts Mormonism which maintains an infinite amount of gods will form. The Bible teaches that we are justified by faith alone and Mormonism teaches we are justified by faith and works.

Why suppose nature will have regularities? If Mormonism is true, then the gods simply can change the regularities of nature at will. Especially, if these gods have libertarian freedom. How can gods that are material beings have libertarian freedom? If they are made of flesh and bone, then they are subject to the laws of physics and chemistry. How can the laws of nature originate from the gods? If the gods are dependant on the laws of nature, then the laws of nature do not originate from them.

In Mormonism, gods are made of Flesh and Bone. The problem arises that God is spirit and is not made of flesh and bone. John 4:24 says “God is spirit, and those who worship him must worship in spirit and truth.” John 3:6 says “That which is born of the flesh is flesh, and that which is born of the Spirit is spirit.”
Luke 24:39 says “Behold my hands and my feet, that it is I myself: handle me, and see; for a spirit hath not flesh and bones, as ye see me have.”