שר הטבחים, he would execute the people sentenced as murderers and would generally be in charge of imprisoned criminals.

ולא ידע אתו מאומה, in the house

כי אם הלחם אשר הוא אוכל, he did not oversee any of the affairs of his household, not caring where everything originated until the food came on his table, when he proceeded to eat it. The word לחם is an inclusive term applying to any manner of food. It is used in the same sense in Daniel 5,1 עבד לחם רב, “he made a great banquet.” Also in Job 3,24 כי לפני לחמי אנחתי, “my groaning serves me as my food.”

(3) WITH HIM THERE, HE PAID NO ATTENTION. From all the household affairs, he did not see anything except at the time of eating.

HE HAS WITHHELD NOTHING FROM ME from being ruler over everything EXCEPT YOURSELF.

להיות עמה, Joseph was even careful not to find himself alone with Potiphar’s wife until there came a day when he was forced to be alone with her in the house as all the other members of the household were occupied outside the house. According to Bereshit Rabbah 87,7 all the other people on that day had gone to watch the river Nile flood its banks, an annual event.

ואקרא בקול גדול, because you were so far away from me. If I had not raised my voice so greatly he would have raped me.