The article draws attention to two long scholia by Severus of Antioch, Severus of Antioch, identified in Constantin Preslavski’s Didactic Gospel, which, however, did not refer to his name. The first one, a fragment from 77th Cathedral Homily of Severus, forms the second half of the exegetical part of Sermon 3. The other one, an excerpt from the 89th Cathedral Homily, which also contains two fragments by Gregory of Nyssa, constitutes a significant part of the Exegesis Section in Sermon 35. It appears in Sermon 35 as part of the Greek original, the catena on Luke CPG C130.1, which Constantine used when composing the sermons on the Gospel of Luke. The fragment in Sermon 3 is not part of the main Greek source of Constantine used to explain the passages from Matthew’s Gospel. It was borrowed from catena on Matthew C110.4, which was not used as a source anywhere else in the Didactic Gospel and was probably added later by an unknown author rather than Constantine himself. Nevertheless, the name of Severus, who was explicitly named as the author of the scholium in C110.4, was omitted in the Didactic Gospel, most likely because he was considered a heretical author in 10th century Bulgaria.