I wonder which theological terms or ideas you find most difficult to understand. For many people, “The Trinity” probably comes somewhere high on the list - although I once talked to an old man who had been brought up in the church from his childhood, and who claimed to have no problems with the idea of the Trinity at all.
Having spent many weeks before and after Easter, focusing on Jesus, God the Son, we begin this month (4th June) with the annual celebration that we call Pentecost, which recalls the outpouring of the Holy Spirit on the early church as recorded in Acts 2. Jesus had talked about the coming of the Holy Spirit, and in His long discourse at the last supper, as described in John 14-17, He referred to the Spirit as Guide, and Comforter, Counsellor and the Spirit of truth.
When Jesus was about to return to heaven (Acts 1), he told his disciples to wait for the gift that his Father had promised – the Holy Spirit, through whom they would receive power and be enabled to be Jesus’ witnesses even to the ends of the earth.
The book that we often refer to as “Acts”, and sometimes as “The Acts of the Apostles”, could equally well be described as “The Acts of The Holy Spirit”, for in it we see the story of the early days of the church, and at each point it is the Holy Spirit who is active in guiding and directing.
Pentecost is followed by Trinity Sundayalways a challenge for preachers.