What is the difference between sin and sins?

Recently I heard television preacher say that 1 John 1:9 was only to be used has a prayer when you were getting saved.
That verse reads “if we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.” In case anyone should believe that, I wish to set the record straight there is a difference between the sin that will send a man to hell and sins that a Christian might commit has he goes through this life.

Adam’s sin (singular) plunged all of his family(human race) into sin. It was the sin of unbelief which led to the partaking of the forbidden fruit. Every man is guilty of that sin of unbelief and ultimately is condemned to hell because of it. Matthew 12 speaks of the blasphemy against the Holy Spirit. Verse 32 says all matter of sin and blasphemy shall be forgiven men. But blasphemy against the Holy Ghost shall not be forgiven unto men. Unbelief condemns a man to death, but all other sins can be forgiven John 3:17 – 21. Verse 18 says ” he that believe is on him is not condemn; but he that believe
not is condemned already, because he has not believed in the name of the only begotten son of God.” First John 1:9 is given to the Christian to take care of the sins he may commit has he navigates through this wicked world . Not one of us can say we have not sinned. The Bible says that all have sinned and come short of the glory of God. That means every one of us is a sinner in need of a Savior. If we say that we have not sinned, we lie, we lie to ourselves, we lie to God and as long as we continue in that lie the list of sins will grow longer.

Let’s review: 1 John 1:9 is to be used for those sins mentioned in Matthew 12:32. Where it says all manner of sin and blasphemy shall be forgiven. There is one sin that cannot be forgiven and that is the blasphemy against the Holy Spirit it. The way a person blasphemes the Holy Spirit is to reject his witness concerning Jesus Christ. In other words to reject salvation through the blood of Jesus Christ, that is the sin that would send a man to hell.