If God is untestable and unverifiable then we should not believe God exists

The existence of God cannot be definitively proven or disproven through the methods used to understand the natural world. If something cannot be empirically verified or tested, and if there is no direct evidence for it, then it is reasonable to withhold belief. This does not mean God does not exist. It means it is more rational to not believe in God unless there is some form of evidence that can be demonstrated.

Background

The nature of God, as conceived in many religious traditions, is typically described as transcendent, non-empirical, and beyond the scope of natural sciences. This makes God untestable in the traditional sense of the scientific method of observation, experimentation, and repeatability.

Belief. People believe in God for a variety of reasons, including philosophical, theological and personal even though the existence of God can’t be scientifically tested or proven in the way we verify natural phenomena. The lack of proof should lead to the conclusion that belief in God is unjustified. It is more rational to not believe in God unless there is some form of evidence that can be demonstrated, just as we would approach any claim about the world that can't be verified.

Philosophical Arguments. Arguments like the cosmological argument or the ontological argument may make sense philosophically, but they do not directly provide physical evidence or observations that can be tested in the way we test physical phenomena. Philosophical arguments, while logical, do not provide empirical, observable evidence. These arguments are speculative reasoning and not conclusive proof.

God of Gaps. The origins of the universe, the complexity of life, and the nature of morality can be explained through scientific theories like the Big Bang, evolution, and ethical frameworks without invoking a divine being. Philosophical arguments for God seem to be "filling in gaps" where science has yet to provide answers and this is not a valid or sufficient reason to believe in God.

Inherently Unfalsifiable. Claiming "God is beyond our understanding" is making an unfalsifiable claim because it can't be tested or proven true or false. When a claim is framed in such vague or absolute terms (like "beyond our understanding"), it is a way to avoid scrutiny or logical examination. This is a way to protect the concept of God from any critical evaluation, making it harder to engage with the claim in any meaningful way.