I think the concept of such an entity being incomprehensible is baked into the idea of religion, or at least Christianity, which is the only religion that I have any actual experience with.
How can you be so sure this entity doesn’t look at every individual and each of their actions and make a judgement on them? The concept of omnipotence and omniscience are themselves incomprehensible to us.
The idea that we don’t know God’s motives is part of why people follow blindly, despite the pain and joy of existence