The Greek word martyria is a courtroom term. It originally meant something like "eyewitness testimony".
In the New Testament, martyria is the eyewitness testimony by the apostles and others who saw and heard Jesus. This testimony about Jesus and His Gospel began with His apostles and then expanded to include all those who came to faith through their preaching and teaching. The church continues to bear witness to Jesus today - as every Christian testifies to Jesus through the vocations God has called them to.
Witness, Mercy, Life Together - Life In Christ for the Church and the World.