God made all kinds of creatures with intelligence at different levels. God alone is infinite and all creatures are finite with some more finite than others. A dog is certainly more finite than a human being. You feed the dog and he eats the food, not knowing where the food came from. You give him a ride in your car and he joins you, not understanding anything about the car. You take him to the vet when he is sick and he goes along with trust. So the dog does not question, knowing that you are his loving master.
God is obviously infinitely more knowing than we are and he had come to tell us that he wanted to save us if only we would believe in him. Then, being finite as we are, why do we keep questioning him and not want to trust in him? If we can't do better than a dog, then our ego must have grossly overestimated our intelligence.