Do you notice anything novel of the stained glass senestre? The figure is viewed from behind, only his head is turned a wee bit. In his hand is a full purse of coin. Further down, at his feet, is a serpent.
This is not the only window in the room. There are other glass portraits. There are those of Joseph the Carpenter, Peter the Janitor, and Andrew the Fisherman. The room is the Eucharistic Adoration Chapel at St. Gregory's, South Euclid, Ohio. The other windows in the room are of John, James the Less, and Saint Jude.
This room is quiet. Jesus resides in the tabernacle in the room. He does not demand silence. Mass can be said in the room, but mostly the people who come are silent, and would be upset with those whom are not.
Catholics are given to all sorts of iconic reminders. The visual representation lends one to center the mind, and in prayer, and in contemplation it is helpful to many.
There is a second room with seven other windows. Six more of 'the Twelve' and Mary, Virgin Mother of Jesus, and spouse of Joseph.
And when day was come, he called unto him his disciples; and he chose twelve of them (whom also he named apostles): Simon, whom he surnamed Peter, and Andrew his brother, James and John, Philip and Bartholomew, Matthew and Thomas, James the son of Alpheus, and Simon who is called Zelotes, And Jude, the brother of James, and Judas Iscariot, who was the traitor. — Luke vi. 13-16.
Now, Jesus in choosing these particular men from his disciples [Latin: discipulus, one who learns, from discere, to learn], those students, for Jesus was a teacher, a rabbi, were to become teachers, emissaries, and leaders. They were the first bishops.
Matthew ends his list of the twelve [x.4b]: "and Judas Iscariot, who also betrayed him." When Mark [iii. 19] lists the twelve, he concludes "And Judas Iscariot, who also betrayed him." John [vi. 71-72] writes, Jesus answered them: Have not I chosen you twelve; and one of you is a devil? Now he meant Judas Iscariot, the son of Simon: for this same was about to betray him, whereas he was one of the twelve.
It is consistent. There are the twelve. Judas Iscariot is always clearly named as one of the twelve. He is always identified as a betrayer, a traitor. Jesus chose Judas Iscariot as one of his original bishops. We have always had bad bishops, and not just a little bad.