The first preachers of the gospel at Antioch, were dispersed from Jerusalem by persecution; thus what was meant to hurt the church, was made to work for its good. The wrath of man is made to praise God.
What should the ministers of Christ preach, but Christ? Christ, and him crucified? Christ, and him glorified? And their preaching was accompanied with the Divine power. The hand of the Lord was with them, to bring that home to the hearts and consciences of men, which they could but speak to the outward ear.
They believed; they were convinced of the truth of the gospel. They turned from a careless, carnal way of living, to live a holy, heavenly, spiritual life. They turned from worshipping God in show and ceremony, to worship him in the Spirit and in truth.
They turned to the Lord Jesus, and he became all in all with them. This was the work of conversion wrought upon them, and it must be wrought upon every one of us. It was the fruit of their faith; all who sincerely believe, will turn to the Lord, When the Lord Jesus is preached in simplicity, and according to the Scriptures, he will give success; and when sinners are thus brought to the Lord, really good men, who are full of faith and of the Holy Ghost, will admire and rejoice in the grace of God bestowed on them.
Barnabas was full of faith; full of the grace of faith, and full of the fruits of the faith that works by love.