For Good Friday, I felt that rather than Patristic words I would provide a Patristic image. There are, however, relatively few images of the crucifixion from the ancient church (and the more Reformed readers say, “Hear, hear!”). I give you photos of the earliest known surviving image of the crucifixion, from the doors of the church of Santa Sabina in Rome, dating to the episcopate of Pope Celestine I (427-432). These are from Wikipedia, my own images being blurry:

5th-c crucifixion, Santa Sabina, Rome