St. Norbert of Xanten speaking in tongues: source texts
Source text and an important French commentary about St. Norbert of Xanten speaking in tongues.
linguarum
Tertullian on Tongues: the Latin
Tertullian’s short treatise on the christian dogma of tongues in the Latin.
Bede on the Doctrine of Tongues: The Latin Texts
The Venerable Bede on the Dogma of Tongues: the Latin texts.