The letter of the law brings death not life! The spirit of the Law is life. And there is a difference the old Covenant is the law of Moses given to jews and their convertts, the Law of Christr is different from the law of Moses though they contain some same commands.
The letters of the law say not to fornicate, be a drunkard, nor thief, nor idolater.
Not being a fornicating, drunken, thief, and idolater does not make anyone dead.
There's nothing dead about the letters of the law nor of any Scripture of God.
God is not dead, nor is His law, nor is His Scripture: without letters on paper, there would not be any law nor word nor gospel of God to read and know assuredly the truth of Jesus Christ.
If you acknowledge the difference between doing the letter of the law without the Spirit, and doing the letter of the law with the Spirit, then you will be able to know the difference between a self-righteous Pharisee, who does the law outwardly only, and a righteous Christian saint, who does the law with a pure heart of Christ.
Then you will cease preaching sinning, by killing the law and it's letter, and cease preaching against righteousness, by accusing the righteous of being self-righteous Pharisees under the law.
But, I don't hold my breath for you.
I'm not saying you can't repent, because even the reprobate Manasseh did so, when God chose to start drawing him again to do so.