We do not know anything about the Judas whose house was on Straight Street in Damascus. In Jewish culture, hospitality towards fellow Jews in particular was encouraged. Judas was probably not a believer since Saul was taken to his home by his companions. 1
11 Et le Seigneur lui dit: Lève-toi, va dans la rue qu'on appelle la droite, et cherche, dans la maison de Judas, un nommé Saul de Tarse.