How does Sir Gawain express the virtue of piety throughout the poem entitled Sir Gawain and the Green Knight?
The word "piety" refers to one's reverence and respect for things religious or for that which is in authority--but most often the word refers to being humble in spirit with the things of God and always paying one's respect to him. Sir Gawain is always paying respect where it is due, whether he is at home in Arthur's court or as a guest in a Lord's castle, he always respects authority and bids everyone to "go with Christ." This skill in virtue is part of the duties of being a noble knight. If at any time a knight forgets his manners or respect for God, he could be embarrassed or shamed which would be great dishonor to himself and to those he serves.