Simon was one of the Twelve Great Apostles. He was born in Cana of Galilee. The Lord Jesus, with His mother and His disciples, came to his marriage feast. When the wine ran out, the Lord changed water into wine (John 2:1-11). Witnessing this miracle, Simon the groom left his home, parents and bride and followed after Christ.
Zealot means zealous. Simon was called the Zealot because of his great and fiery zeal for the Savior and His Gospel. After receiving the gift of the Holy Spirit, Simon went to preach the Gospel in Mauritania in Africa. Because he succeeded to convert many to the Faith of Christ, Simon was tortured and finally crucified, as was his Lord, Who prepared for him a wreath of glory in the immortal kingdom.
—From The Prologue from Ohrid by Saint Nikolaj Velimirović.
The Holy Apostle Simon’s feast days are May 10 and June 30 (the Feast of the Twelve Apostles).