Luke 24:8-9

The women now remembered the predictions they had heard but had not understood. The Resurrection had begun to clarify many things that Jesus had previously taught His disciples (cf. Acts 11:16). The women then returned to the Eleven and the other disciples with their news. The angels had been witnesses of the Resurrection to the women, and now the women were witnesses of it to the rest of the disciples. They in turn would be witnesses of it to the ends of the earth (Acts 1:8). Luke probably wanted his readers to note this beginning of the Christian mission here.