The feast of the Holy Trinity, which is celebrated on the Sunday after Pentecost, was established for the whole Western Church in 1134 by pope John XII. The Angelic Trisagion is said for the three ...

"The mystery of the Most Holy Trinity is the central mystery of Christian ... the consubstantial communion between Father and Son, by saying that the Spirit proceeds from the Father and the ...

It is a noble and humble act to offer a brief prayer to the Holy Spirit before and after our decisions and actions throughout ...