It may be regarded as certain that most of the aberrations discoverable in Codexes of the Sacred Text have arisen in the first instance from the merest inadvertency of the scribes. That such was the case in a vast number of cases is in fact demonstrable. [Inaccuracy in the apprehension of the Divine Word, which in the earliest ages was imperfectly understood, and ignorance of Greek in primitive Latin translators, were prolific sources of error. The influence of Lectionaries, in which Holy Scripture was cut up into separate Lections either with or without an introduction, remained with habitual hearers, and led them off in copying to paths which had become familiar. Acquaintance with 'Harmonies' or Diatessarons caused copyists insensibly to assimilate one Gospel to another. And doctrinal predilections, as in the case of those who belonged to the Origenistic school, were the source of lapsing into expressions which were not the _verba ipsissima_ of Holy Writ. In such cases, when the inadvertency was genuine and was unmingled with any overt design, it is much to be noted that the error seldom propagated itself extensively.] But next, well-meant endeavours must have been made at a very early period 'to rectify' ([Greek: diorthoun]) the text thus unintentionally corrupted; and so, what began in inadvertence is sometimes found in the end to exhibit traces of design, and often becomes in a high degree perplexing. Thus, to cite a favourite example, it is clear to me that in the earliest age of all (A.D. 100?) some copyist of St. Luke ii. 14 (call him X) inadvertently omitted the second [Greek: en] in the Angelic Hymn. Now if the persons (call them Y and Z) whose business it became in turn to reproduce the early copy thus inadvertently depraved, had but been content both of them to transcribe exactly what they saw before them, the error of their immediate predecessor (X) must infallibly have speedily been detected, remedied, and forgotten,--simply because, as every one must have seen as well as Y and Z, it was impossible to translate the sentence which results,--[Greek: epi ges eirene anthropois eudokia]. Reference would have been made to any other copy of the third Gospel, and together with the omitted preposition ([Greek: en]) sense would have been restored to the passage. But unhappily one of the two supposed Copyists being a learned grammarian who had no other copy at hand to refer to, undertook, good man that he was, _proprio Marte_ to force a meaning into the manifestly corrupted text of the copy before him: and he did it by affixing to [Greek: eudokia] the sign of the genitive case ([Greek: s]). Unhappy effort of misplaced skill! That copy [or those copies] became the immediate progenitor [or progenitors] of a large family,--from which all the Latin copies are descended; whereby it comes to pass that Latin Christendom sings the Hymn 'Gloria in excelsis' incorrectly to the present hour, and may possibly sing it incorrectly to the end of time.