The document discusses Pentecost Sunday and how Christians receive power from the Holy Spirit to be witnesses. It provides biblical quotes about waiting in Jerusalem for the Holy Spirit (Acts 1:4) and receiving power to be witnesses in Jerusalem, Judea, Samaria, and the ends of the earth (Acts 1:8). The document then outlines different ways to witness, including through proclamation, personal encounters, sharing one's personal story, and practical acts of kindness.