I've already won the debate Jerry. It was won 2000 years ago when John wrote his letter. You simply have not come to grips with reality in your depraved mind.
What difference does it make when the epistle was written. It was written for Christians then and the doctrine in that epistle applies to Christians today.
You continue to grasp for straws because you realize that your own words have doomed your efforts in this debate. By your own words you agree with me that the pronouns at 1 John 1:9 are in reference to Christians. You also agree with me that the KJV translation is correct. Put those two together and we get:
If Christisans confess our sins, He is faithful and just to forgive us our (Christian's) sins, and to cleanse us (Christians) from all unrighteousness.
Door, you are still a babe in Christ. You prove that you are still an infant, not able to understand the "types" that illustrate the truth of 1 John 1:9.
You were unable to give an intelligent answer to the "type" of the Lord Jesus washing the feet of His disciples. Another "type" that illustrates the truth of 1 John 1:9 is the role played by the high priest under the law.
The duties of the high priest under the law were for a nation that had already been redeemed and sprinkled with the blood of the covenant.
The Lord Jesus, as the Christian's High Priest, has duties that are in regard to the sinner who is already redeemed by His blood.
Under the law the duty of the high priest was to cleanse the redeemed nation of her sins:
"For on that day shall the priest make an atonement for you, to cleanse you, that ye may be clean from all your sins before the LORD" (Lev.16:30).
The Lord Jesus is now the Christian's High Priest, and it is through Him that the Christian is cleansed from the sins which he commits after he has been redeeemed:
"For this reason he had to be made like his brothers in every way, in order that he might become a merciful and faithful high priest in service to God, and that he might make atonement forthe sins of the people" (Heb.2:17; NIV).
"...the blood of Jesus Christ his Son cleanseth us from all sin...If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness" (1 Jn.1:9).