Can the gloria and sanctus be replaced at Mass with some other liturgical hymn or song?

Or can they be partially modified?

  • Do you ask about the official rules or about what is actually done? Here in Germany the official (!) hymn book of the Catholic Church contains multiple sung variants of the Gloria and the Sanctus; many of them only translation variants (that would all be seen as "correct" translations of the Latin text in spite of using different words); some of them different. Sep 9, 2020 at 17:36

1 Answer 1


General Instruction of the Roman Missal (2003):

53. The Gloria is a very ancient and venerable hymn in which the Church, gathered together in the Holy Spirit, glorifies and entreats God the Father and the Lamb. The text of this hymn may not be replaced by any other text.

  • Anything on the Sanctus? Sep 7, 2020 at 2:02
  • @MattG The Sanctus is part of the Eucharistic Prayer (which may not be altered). See GIRM 79b and 24. Sep 7, 2020 at 7:31
  • @Andrew shouldn't that then be included in the answer? Sep 7, 2020 at 14:42

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