14 / 27 May
In the reign of the Emperor Decius, this Isidore was taken by force by soldiers from the island of Chios. He had held the Christian faith from his youth, and had spent his life in fasting, prayer and good works. So when, in the army, he declared himself to be a Christian, the commander took him to task for it, and urged him to deny Christ and offer sacrifice to idols. The saint replied: 'Even if you kill my body, you have no power over my soul. I have the true and living God, Jesus Christ, who lives in me and will be with me at my death; and I am in Him and shall remain in Him, and will not cease to confess His holy name while the spirit is in my body.' The commander ordered that they first beat him with iron flails and then cut out his tongue. But, even without his tongue, Isidore was able to speak, and confessed the name of Christ by the Spirit of God. Meanwhile the punishment of God struck the commander, and he suddenly became mute. The mute commander finally gave the signal to behead Isidore. Isidore rejoiced at this sentence and, praising God, went out to the scaffold, where his head was cut off in the year 251. His friend, Ammon, buried his body and, after that, himself suffered and received the wreath of martyrdom.