According to the "Gospel of the Ebionites" or" Gospel of the Twelve Apostles" (of the 2nd century and mentioned by Origen) Simon received his call to the apostleship along with Andrew and Peter, the sons of Zebedee, Thaddaeus and Judas Iscariot at the Sea of Tiberias (compare Matthew 4:18-22; see also Hennecke, Neutestamentliche Apokryphen, 24-27).