We sang the hymn "Thou art worthy" the other week. The first verse is by Pauline Michael Mills, with a second verse added by Tom Smail. I was thinking that with a third verse on the Holy Spirit, it would make a good Trinitarian piece. Here's my attempt in modernised English.
You are worthy, You are worthy,
You are worthy, O Dove,
You are worthy to receive glory,
the Spirit of Christ and of God.
For You have renewed us, have
sanctified and sealed us,
by Your power making us whole.
And You will raise us
as You raised Jesus
to sit at the Father’s right hand.