What makes you think that these are valid testimonies? No actual historian has ever come out and confirmed that these events really did take place. There's no trace of these supernatural events other than gospel. Every religion has so-called "testimonies" of its prophets and gods, for example, there are many islamic testimonies of Muhammed healing the sick, going invisible, communicating with animals, and even splitting the moon. In ancient egypt, there are testimonies of the god "Ra" traveling across the sky every day in a burning boat. In ancient greece, there was something called the asclepeion, these were healing temples that were named after the god of medicine "asclepius" who was said to be a doctor that performed miracles like raising people from the dead back to life, he was portrayed as a public hero at the time. There are even claimed sightings of bigfoot, people who claim that they actually saw the creature, like the group of campers at marble mountain who claim that they have encountered bigfoot, or the british explorer who claimed to have found a yeti while hiking in the himalayas, he even took a picture of a huge footprint that is alleged to be a yeti's footprint. Testimonies and claimed sightings of anything exist, yet there's no evidence that these are valid and honest testimonies. Non of these testimonies were confirmed to be true by actual historians, people who have devoted their life to the unbiased study of human history.