<Tr> <Th> Melody </Th> <Td> "Nicaea" by John Bacchus Dykes </Td> </Tr> <Tr> <Th> Composed </Th> <Td> 1861 (1861) </Td> </Tr> <P> "Holy, Holy, Holy!" is a Christian hymn written by Reginald Heber (1783--1826). Its lyrics speak specifically of the Holy Trinity, having been written for use on Trinity Sunday . It quotes the Sanctus of the Latin Mass, which translated into English begins "Holy, Holy, Holy! Lord God of Hosts". The text also paraphrases Isaiah 6: 3 and Revelation 4: 1--11 . John Bacchus Dykes composed the tune Nicaea for this hymn in 1861 . The tune name is a tribute to the First Council of Nicaea which formalized the doctrine of the Trinity in 325 . </P> <P> Holy, Holy, Holy! Lord God Almighty! Early in the morning our song shall rise to Thee; Holy, Holy, Holy! Merciful and Mighty! God in Three Persons, blessed Trinity! </P>

Who wrote the song holy holy holy lord god almighty