From the Treasury of Daily Prayer:
Silas, a leader in the Church at Jerusalem, was chosen by Paul (Acts 15:40) to accompany him on his second missionary journey from Antioch to Asia Minor and Macedonia. Silas, also known as Silvanus, was imprisoned with Paul in Philippi and experienced the riots in Thessalonica and Berea. After rejoining Paul in Corinth, Silas apparently remained there for an extended time. Sometime later he apparently joined the apostle Peter, likely serving as Peter's secretary (1 Peter 5:12). Tradition says that Silas was the first bishop at Corinth.
And so we pray:
Almighty and everlasting God, Your servant Silas preached the Gospel alongside the apostles Peter and Paul to the peoples of Asia Minor, Greece, and Macedonia. We give You thanks for raising up in this and every land evangelists and heralds of Your kingdom, that the Church may continue to proclaim the unsearchable riches or our Savior, Jesus Christ, who lives and reigns with You and the Holy Spirit, one God, now and forever. Amen.