Glossa Ordinaria — as excerpted in the Catena Aurea on Matthew 11:1-6

“(non occ.) The Evangelist had shewn above how by Christ’s miracles and teaching, both His disciples and the multitudes had been instructed; he now shews how this instruction had reached even to John’s disciples, so that they seemed to have some jealousy towards Christ; John, when he had heard in his bonds the works of Christ, sent two of his disciples to say unto him, Art thou he that should come, or look we for another?”