The Sunday after Pentecost is traditionally known as Trinity Sunday, the only holy day of the year named after a doctrine of the church, rather than a biblical event. The Holy Spirit which touched the earth on Pentecost is still active in our lives and throughout the world today. But for many, the Holy Spirit is the most mysterious member of the Trinity, one we often overlook when it comes to thinking about God. We will discover together new understandings and appreciation of the Holy Spirit based on John 16, in which Jesus describes how the Spirit “guides us into truth” and prompts us to “glorify Jesus Christ."