Continuing the story from Acts from Acts 13, we heard that later on, the Jews incited the people, stirred up a persecution against Paul and Barnabas, and expelled them from their territory. So they shook the dust from their feet and left. The disciples were filled with joy and the Holy Spirit.
Spreading the word of God, telling others about Jesus, sharing how the Lord has transformed your personal life...these things are continually prompted by the Holy Spirit. Since joy and the Holy Spirit are inseparable, the Christian heart is continually filled with joy.