Genesis 39:3-5, 21

When his master saw that the LORD was with him and that the LORD gave him success in everything he did, Joseph found favor in his eyes and became his attendant. Potiphar put him in charge of his household, and he entrusted to his care everything he owned. From the time he put him in charge of his household and of all that he owned, the LORD blessed the household of the Egyptian because of Joseph. The blessing of the LORD was on everything Potiphar had, both in the house and in the field.

the LORD was with him; he showed him kindness and granted him favor in the eyes of the prison warden.