Athanasius of Alexandria — as excerpted in the Catena Aurea on Luke 23:34-37

“(ubi sup.) Now our Lord being truly the Saviour, wished not by saving Himself, but by saving His creatures, to be acknowledged the Saviour. For neither is a physician by healing himself known to be a physician, unless he also gives proof of his skill towards the sick. So the Lord being the Saviour had no need of salvation, nor by descending from the cross did He wish to be acknowledged the Saviour, but by dying. For truly a much greater salvation does the death of the Saviour bring to men, than the descent from the cross.”