Martyrs Sarbelius and Bebaia of Edessa
The Holy Martyrs Sarbelus and Bebaia (Barbea) of Edessa were brother and sister, suffering in the second century under the emperor Trajan for confessing Christianity. Saint Sarbelus was a priest of the idols at Edessa, but was converted to Christ by a certain bishop, then he and his sister were baptized. Pagans tortured the saints for a long while, and then beheaded them.
These saints are also commemorated on January 29. Saint Sarbelus may be the same one who is commemorated on September 5.