It's not that God cannot it's that the human church cannot say for certain whether God does. For example, God can come back tomorrow riding in from heaven on a

It's not that God cannot it's that the human church cannot say for certain whether God does. For example, God can come back tomorrow riding in from heaven on a Ford mustang but the church isn't going to declare this as true and make everyone wait for it tomorrow. If God tells you to do X so Y happens, then you should do X. You should not do Z and then expect Y to happen with certainty. It might. It might not. You cannot know.