All of those things can be observed and measured in some way though. You can make predictions based on evidence, and if your model is correct, your predictions will always be true. For example, while we cannot see gravity, we know that it causes all objects to fall to Earth at a rate of roughly 9.8 meters per second. You can make an accurate prediction of how long a thrown projectile will take to hit Earth based on that mathematical model. There is no accurate predictive power from any understanding or theoretical model of God, just look at how many people believe in God, yet disagree on basic things like - Is there one God or many? Is there heaven and hell, and who goes there if so? Why does God allow evil? Which religion is true? And so on. You can't compare God to basically any of the other things you mentioned because all the other things you mentioned like the wind have observable effects, can be perceived by other senses (wind can be felt), or can be seen by instruments (such as your brain being visible in an MRI scan). None of those applies to any God or other supernatural concepts.