From the BBC description:
The Archbishop of Canterbury, Justin Welby, preaches at a service for Pentecost. This Pentecost Sunday afternoon, Trafalgar Square in Central London is set to host a large gathering of Christians celebrating the most joy filled festival marking when the Holy Spirit came upon the disciples and they were sent out across the known world to preach a gospel of repentance, faith and hope. The event will be the climax of this year’s ‘Thy kingdom come’ global prayer movement which invites Christians around the world to pray for the growth of the Church as more people come to faith in Jesus Christ.
Today’s service looks forward to the celebration and is led by the Bishop of London, Sarah Mullally, with contributions from leaders of other Christian denominations including Cardinal Vincent Nichols, Archbishop of Westminster, Archbishop Angaelos, General Bishop in the UK of the Coptic Orthodox Church and Michaela Youngson, President of the Methodist Conference. Christian singer-songwriter Matt Redman explores the power of the Holy Spirit through music.
In the ten days between Ascension Day and Pentecost Sunday, hundreds of thousands of Christians have united by pledging to pray in the most ambitious evangelism project in a generation. What started in 2016 as an invitation from the Archbishops of Canterbury and York to the Church of England has grown into an international and ecumenical call to prayer, involving over 65 denominations, in 114 countries around the world.
Listen to it all (just under 40 minutes and note the outline of the whole service in print is toward the bottom).
— Shauna Lee Lange (@shaunaleelange) June 5, 2017