Te Deum, Trinity 2009

In honor of Trinity Sunday, here is Giovanni Vianini singing the Te Deum Laudamus:




From Full Homely Divinity, and a page about Trinity Sunday:

The doctrine of the Holy Trinity is older than Celtic Christianity, and the celebration of Trinity Sunday as a major feast of the Church year did not originate in Britain. Nevertheless, it clearly found a most congenial climate and took root easily. Indeed, the spread of the observance of Trinity Sunday and its ultimate establishment in the universal calendar of the Western Church is largely due to the popularity of an Englishman: Archbishop St. Thomas (Becket) of Canterbury. As early as the ninth century, the first Sunday after Pentecost was being observed in some places as a day particularly devoted to celebrating our trinitarian faith in one God in three Persons, Father, Son, and Holy Spirit. However, the observance was far from universal and one pope even dismissed it as an unnecessary observance since every act of worship is offered in the Name of the Trinity. In 1162, Thomas Becket was ordained to the Priesthood on Ember Saturday in Whitsun week. On the next day, he was consecrated as Archbishop of Canterbury. As Archbishop and Metropolitan, he obtained for all of England the privilege of celebrating the Sunday after Whitsunday as Trinity Sunday. After his martyrdom in 1170, and subsequent canonization, his shrine in Canterbury became one of the most important pilgrimage shrines in all of Europe and the popularity of Trinity Sunday also spread.

Much more at the FHD link above, and see last year's post on this blog for the words and etc.

Here is the "Trinity Shield," which says, in Latin, that "The Father is God and the Son is God and the Holy Spirit is God, but the Father is not the Son and the Son is not the Holy Spirit and the Holy Spirit is not the Father." Sort of.





And here's the famous "Icon of the Holy Trinity" by Andrei Rublev, c. 1365-c. 1430.