Agios O Theos


  • Greek: O Holy God


Opening words of an invocation, doxology, or hymn, sung in the Roman liturgy during the Improperia, or Reproaches, at the Veneration of the Cross on Good Friday. In the Greek liturgy, it is sung at all canonical hours, and during the long Mass-service.

MLA Citation

  • “Agios O Theos”. New Catholic Dictionary. CatholicSaints.Info. 22 October 2010. Web. 21 September 2021. <>