In spite of the mortifications he practiced, and though he gave the poor and the sick the food apportioned to him, his master thought he lived a luxurious life, for those that fast for the glory of God are made beautiful of countenance.
The wife of Potiphar would frequently speak to her husband in praise of Joseph's chastity in order that he might conceive no suspicion of the state of her feelings. And, again, she would encourage Joseph secretly, telling him not to fear her husband, that he was convinced of his purity of life, and though one should carry tales to him about Joseph and herself, Potiphar would lend them no credence. And when she saw that all this was ineffectual, she approached him with the request that he teach her the word of God, saying, "If it be thy wish that I forsake idol worship, then fulfil my desire, and I will persuade that Egyptian husband of mine to abjure the idols, and we shall walk in the law of thy God." Joseph replied, "The Lord desireth not that those who fear Him shall walk in impurity, nor hath He pleasure in the adulterer."