You are a tripartite being who is a spirit, having a soul and living in a body. Your spirit must therefore take charge of your soul and body. David was feeling depressed, agitated, angry and tumultuous. As a spirit, he immediately took charge and asked his soul why it was feeling so depressed. He later gave medication to his soul which is hoping in God and praising him and he is the healing or the Jeshua or deliverance of his emotions, and by extension his countenance.