It shall be the duty of any officer who conducts any such sale to apply the proceeds in the following priority:
(1) To the payment of the expenses of sale;
(2) To the payment of the costs included in the judgment upon which sale was made;
(3) To the discharge of the debt adjudged to be due;
(4) To pay the surplus, if any, into court for the use of the defendants subject to the order of the court.