The Book of Acts profiles a people living bold.
The theme of boldness takes center-stage in Acts 4 with the story of Peter's and John's trial before the Sanhedrin. We learn that what astonishes the Jewish leaders pertains mainly to the apostles' content, not their emotions. The bewildering reality at work in Peter's and John's testimony is what they say about Jesus.
These two fishermen had become messengers of God's salvation, heralds for a new age in human history. They were now spokesmen of the risen and reigning Lord over all. So yes, they spoke with passion. But the point Luke drives home is not their style, but their substance. Not their homiletics, but their hermeneutics. It was all centered on Christ -- how he is the One to whom the whole Old Testament points, how his work has changed the world forever.
The heart of Peter's and John's boldness was how they spoke clearly about the identity and significance of Jesus. The picture Luke gives us of the early Christian mission is that the church was not without words when it came to the question of their King. They knew Jesus -- they saw him in the Scriptures, they understood his epoch-shifting wonder and its implications for everybody everywhere. They knew Jesus, and so should we.
[Read the rest of the article at Desiring God.]