And it came to pass from the time that he had made him overseer in his house, and over all that he had, that the LORD blessed the Egyptian’s house for Joseph’s sake; and the blessing of the LORD was upon all that he had in the house, and in the field.
After Joseph became the manager of his boss's household and possessions, God blessed the boss's entire estate because of Joseph. This blessing from God was present in everything the boss had in both his home and fields.