Silence of the Lamb

Preaching on the section of Acts regarding the Ethopian Eunuch, Pastor Gibson takes the opportunity to focus upon what the eunuch was reading in Isaiah 53. Then he draws the listener's attention to an important yet seldom considered fact of the trial and crucifixion of Christ, that is, the fact that Christ was mostly silent. Why? What did that mean for Christ? What does that mean for us?