Rashi
Jewish
1040–1105
“ויהי כהיום הזה AND IT CAME TO PASS ON A CERTAIN DAY — This means as much as “and it came to pass when a certain distinguished day arrived” — a day of merriment, a day of their sacred feast when they all went to the temple of their idols, — she said), “I shall find no day fitting to associate with Joseph as this day”. She therefore told her attendants I am sick and cannot go to the temple (Sotah 36b). לעשות מלאכתו TO DO HIS WORK — Rab and Samuel differ as to what this means. One holds that it means, his actual house-work; the other that it means to associate with her, but a vision of his father’s face appeared to him and he resisted temptation and did not sin as is stated in Treatise Sotah 36b.”