Thomas Aquinas believed that miracles were ‘those things done by divine power apart from the order usually followed in things’, this meant that God can do what he wants to do with his creation. He basically said a miracle is something that breaks the law of nature.
For him there were three types of miracles:
1. An event done by God which nature could not do
2. An event done by God which nature could do e.g. being saved from an terminal illness or becoming un-paralysed.
3.An event done which nature could do but without using the principles or forces of nature. e.g. recovering from a cold quicker than usual could be seen as another miracle.