Biblical prophecy is believed to be literally true by a number of conservative Christians, such as Norman Geisler and Young Earth Creationists. Interpreters uphold this principle by providing details of prophecies that have been fulfilled. Interpreters also dispute the legitimacy of non-biblical prophets and psychics. Professor Peter Stoner and Dr. Hawley O. Taylor, for example, believed the Bible prophecies were too remarkable and detailed to occur by chance. Arthur C. Custance maintained that the Ezekiel Tyre prophecy (Ezek. 26: 1–11; 29:17–20) was remarkable.