Jesus rebukes fevers and demons in His public ministry. His authority as the Son of God is unmatched. People with various diseases are coming to Him and everyone of them is healed. Though He is serving, healing, giving, and blessing all of these people He doesn't let His tiredness keep Him from doing His Father's will. For us today, Jesus can heal us - He's not too tired or too busy - He can truly heal us of our biggest and neediest problem of sin.