Greek and Latin Credo in 10th Century Cod. Sang. 318 and the Filioque

 Cod. Sang. 318 is a 10^th Century Cantatorium / Gradual from St. Gallen Monastery in Switzerland. In the section that gives the Nicene-Constantinopolitan Symbol of Faith in Greek and Latin, see page 21:

https://www.e-codices.unifr.ch/en/csg/0381/21/0/

In Latin it simply reads as:

“Et in Spiritum Sanctum, Dominum et Vivificantem, Qui ex Patre Procedit.”

[“And in the Holy Ghost, the Lord and Giver of Life, Who from the Father Proceedeth.”]

In the transliterated Greek it reads much the same, except, I believe, a later hand has added “ke Yio” (and the Son) so that it follows “ek tu Patros.”

That is, in a slightly less darker ink, a little off to the side a later hand interpolate the manuscript, so, instead of reading originally as “Ke is to Penumato Agion to Kyrrion ke Zoopion ton ek tu Patros ek poreugomenon,” after “ton ek tu Patro” the phrase “ke Yio” is added.”

But, yet the later hand forgot to interpolate the Latin Symbol, instead leaving it uncorrupted as “Qui ex Patre Procedit.”

Often, when later redactors go over books, it is not too difficult to tell when they start adding things; something seems strangely out of place, a phrase off to the side that is evident, a lighter or even different color ink, etc.

Yet, this is an important testimony that the Latin variant of the Credo that reads “Qui ex Patre Procedit” instead of “Ex Patre Procedentem” did exist without a Filioque interpolation.