One of the main reasons Friday the 13th is considered unlucky is because of the biblical story of the Last Supper. According to the Bible, there were 13 people present at the Last Supper, and one of them, Judas Iscariot, betrayed Jesus Christ. This led to the crucifixion of Jesus on a Friday, which is known as Good Friday. This association with betrayal and death has led to Friday being considered an unlucky day and the number 13 is associated with bad luck. Another reason Friday the 13th is considered unlucky is because of the number 13 itself. In many