St. Basil was one of the most popular of the Greek Fathers amongst the Syrian churches, and his De Spiritu Sancto was twice translated into Syriac. The first version, made in the late fourth/early fifth centuries, survives the three manuscripts of the fifth-seventh centuries and is edited and translated here for the first time. It is a paraphrastic text and so is of theological interest in its own right. Its biblical citations are also noteworthy...