The Holy Apostles Sosthenes was head of the Corinthian synagogue before his conversion. The Apostle Paul converted him to Christianity and made him his helper in his work. In addressing the Corinthian church, Saint Paul sent greetings from both of them: “Paul, by the will of God called to be an apostle of Jesus Christ, and brother Sosthenes...” (1 Cor.1:1). Afterwards, Saint Sosthenes was made bishop at Colophon (Asia Minor).
Saint Sosthenes is also commemorated on December 8 and the Synaxis of the Seventy Apostles on January 4.