In our study of Jesus’ mission in Luke-Acts, we have seen Jesus prepare his witnesses (Luke 8) and commission his witnesses (Luke 9 and 10). But now Jesus challenges his witnesses by showing them the full meaning of what coming after him is all about. For being Jesus’ witness is not only about knowing Jesus’ power and blessing. Being his witness is also about a profound commitment. Jesus’ words in these two texts answer three questions that all his witnesses must ask.