Indeed, it would take an almost divine knowledge to define that law-order with any precision and then to judge what events are violations of it. Certainly people claiming to have experienced miracles have never claimed any such knowledge. Martin thinks that this definition is the traditional Christian one. So I prefer to say that miracles are unusual events in which God reveals himself with remarkable vividness. But by graciously opening people's hearts to perceive him in the event.
Miracles go dramatically against our expectations.
As such, they remind us vividly that God rules the world and they draw our attention to his revelation, which always accompanies the miracle. But just for the record, I am still not convinced of Martin's argument here. Again, science presupposes relative uniformity, but not absolute uniformity. He thinks that assertion is wrong and not accepted by many Christian thinkers. There are various kinds of necessity other than logical necessity.