>at least one of them should be reliably repeatable

The entire idea is that a conscious mind is controlling things. The only truly repeatable aspect of a conscious being is their reflexes, and you can't hammer God in the shins. There are no predictions that you can draw from theism, so it can't be falsified or supported. The idea that you should look for ideas that yield predictions, although it is obvious to us now, took thousands of years to develop.