The Doctor Who Drank the Evidence
In 1984, Australian gastroenterologist Barry Marshall had a theory no one would believe. He was convinced that most stomach ulcers were caused by a spiral-shaped bacterium called Helicobacter pylori — not by stress or diet, as every medical textbook insisted. Journal editors rejected his papers. Senior physicians dismissed him as a crank. The entire medical establishment had reached its verdict.
So Marshall did something audacious: he drank a petri dish full of the bacteria.
Within days, he developed severe gastritis — the inflammation that precedes ulcers. A biopsy confirmed it. He then treated himself with antibiotics and recovered completely. He had put his own body on the line because he knew what was true, even when the world said otherwise. In 2005, Barry Marshall and his colleague Robin Warren received the Nobel Prize in Medicine.
That image — a scientist so certain of what he had seen that he risked his own stomach on it — is a picture of biblical courage. Courage is rarely the absence of fear. It is the willingness to act on what you know to be true when the consensus of the crowd says you're wrong.
God has given each of us a truth to carry. Not every truth requires drinking a petri dish, but every truth requires something: a hard conversation, a step of obedience, a refusal to go along. The question is whether we trust what God has shown us enough to stake something real on it.
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