Any time the evil spirit from God came on Saul, David would take his harp and play it. The evil spirit would leave Saul and he would begin to feel better.
King Nebuchadnezzar gave the young men a certain amount of food and wine every day. This was the same kind of food that he ate. He wanted them to be trained for three years. After that they would become servants of the king of Babylon.
So Potiphar was very happy with Joseph. He allowed Joseph to work for him and to help him rule the house. Joseph was the ruler over everything Potiphar owned.