I am concerned because the vere you mentioned, I John 1:9 is not talking to a believer but actually an unbeleiver because the love of the truth is not in him st start with if he never sincerely fully repented with a fully contrite heart. Those that come to the light the the fear of the lord wisdom, in that the light of the truth they know can see right through them and in God giving the truth and the light as needed there is full surrender in the person receiving in this case only, eternal life. Once that life is given by Christ to the new joint heir of and with christ nothing can ever seperate him or her from the love of God. When you say the the saved person needs to confess his or her sins for any additional redemption or cleansing from all unrighteousness, then if a saved person sins which we all do sin, would need an on goiong redemptive power. Christ gives eternal life from the beginning and once to die and after this the judgemnent which either means we are living by the light and faith that saved us in full and completion or you believe that a saved person still needs on going redemptice power. Once I am bought it is a contract. Christ remembers my sin no more. He is talking to non saved people who like everywhere think that they are good enough. with out Christ.