Judging by the words "[Et iterum venturus est cum gloria, iudicare vivos] et mortuos; cuius regni non erit finis", it is the ending phrase of a middle portion of the catholic Credo. The setting is syllabic but the clip too short for making conclusions. Origin might be north Italian late renaissance, German baroque, Portugese 18th century baroque, … Better to just recognize the specific piece, which I do not.