How Sir Bors departed; and how Sir Launcelot was rebuked of Queen Guenever, and of his excuse. Now, said that old man to Sir Bors, go ye to your cousin, Sir Launcelot, and tell him of this adventure the which had been most convenient for him of all earthly knights; but sin is so foul in him he may not achieve such holy deeds, for had not been his sin he had passed all the knights that ever were in his days; and tell thou Sir Launcelot, of all worldly adventures he passeth in manhood and prowess all other, but in this spiritual matters he shall have many his better. And then Sir Bors saw four gentlewomen come by him, purely beseen: and he saw where that they entered into a chamber where was great light as it were a summer light; and the women kneeled down afore an altar of silver with four pillars, and as it had been a bishop kneeled down afore that table of silver. And as Sir Bors looked over his head he saw a sword like silver, naked, hoving over his head, and the clearness thereof smote so in his eyes that as at that time Sir Bors was blind; and there he ............