Born in Cyprus, he embraced the Christian faith soon after the death of our Lord, and was a member of the original Jerusalem community. His generosity and strength of character shines forth in the Book of the Acts of the Apostles, where the first thing recorded about him is that he sold some of his property and gave the money to the apostles for the support of the Christian community.
Just after St. Paul's conversion St. Barnabas befriended him and introduced him to the apostles. This was at a time when Christians distrusted the rabbi who had so viciously persecuted the Church. Barnabas was the first to recognize Paul's potential for the cause of the Gospel, and it was Barnabas who brought him from Tarsus to teach at Antioch. The first missionary journey, which took place about 45-48 A.D., and which the two made together, was decisive in the establishment of the Church and the spread of the Gospel.
He was present with St. Paul at the Council of Jerusalem, which was instrumental in opening the Church up to the Gentiles. While they were preparing for the second missionary journey, they had a serious difference of opinion regarding young John Mark, and as a result of that argument the two men continued their labours separately.
St. Barnabas went to Cyprus with Mark and there are no further references to him in the Acts of the Apostles. Tradition tells us that he was martyred at Salamis in Cyprus by being stoned and then burned. That same tradition indicates that he was buried there by his kinsman, John Mark. His name has been included in the Canon of the Mass since ancient times.
O Lord God Almighty, who didst endue thy holy Apostle Barnabas with singular gifts of the Holy Spirit: leave us not, we beseech thee, destitute of thy manifold gifts, nor yet of grace to use them always to thy honour and glory; through Jesus Christ thy Son our Lord, who liveth and reigneth with thee, in the unity of the Holy Spirit, ever one God, world without end. Amen.