On Trinity Sunday we are drawn into the presence of God by the Spirit through Jesus, sent by love of the Father. We are drawn inward in order to be sent out to give and bless and be the presence of Jesus. Trinity is community, perfect in love and acceptance and giving out, going out. We are to be like that in the church.
All true, but full of issues about how. How? Peter was writing to churches in what is now Turkey. He writes all about how to live a complicated life with households, with worries and pressures, and how to be the community that God wants us to be, because that community is mainly the means through which He loves us.
So today’s sermon is about community in the light of Trinity. That community of the church is above all called to witness and worship. We witness every day by what kind of people we are individually and as a community.