It’s a well-known story. At the Last Supper, after Jesus bluntly tells his twelve closest friends that one of them will betray him, they all protest that they would never do such a thing. And no one protests louder or longer than Simon Peter (not so-named for the rocks in his head, although you could be forgiven for thinking so).
Jesus calmly tells Peter that Peter will deny him three times, which is met with still more protestations by Peter.
In a shocking plot twist, it turns out that everything Jesus predicted came to pass, the very next day. Peter should have asked him for the lotto numbers.
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Note: This date is based on the traditional date of the Crucifixion as April 3.