What does agnosticism primarily assert regarding the existence of God?

Agnosticism primarily asserts that evidence for God's existence is insufficient, meaning that the existence or non-existence of a deity is unknown or unknowable. Agnostics maintain that it is not possible to have absolute certainty or proof regarding the existence of God. This perspective highlights a skeptical approach to theological claims, acknowledging the limits of human knowledge and experience in matters of divinity.

In contrast, definitive proof of God's existence would align more closely with theism rather than agnosticism, which refrains from making such absolute claims. The idea that faith is the only requirement is more representative of a religious belief system that prioritizes faith over evidence, not a hallmark of agnosticism. Similarly, asserting God's existence as a universally accepted truth would suggest a consensus that undermines the agnostic view of uncertainty and skepticism concerning divine existence. Therefore, the core of agnosticism lies in recognizing the inadequacy of evidence related to the existence of a deity, thus supporting the assertion about insufficient evidence.