(Genesis 44:14:) WHEN JUDAH AND HIS BROTHERS CAME TO JOSEPH'S HOUSE. What is the meaning of TO JOSEPH'S HOUSE? Was it not so that every single day he went out to judge upon the rostrum? Rather, on that day he did not go out, so as not to shame his brothers in the presence of the Egyptians.
Why Joseph Stayed Home to Spare His Brothers Shame
Midrash Tanchuma Buber, Miketz 13:6
ויבא יהודה ואחיו ביתה יוסף (בראשית מד יד), מהו ביתה יוסף, והלא בכל יום ויום יוצא לדון בבימה, אלא אותו היום לא יצא, שלא לבייש את אחיו בפני המצריים.