Myself and my Christian interlocutor agree that it is utterly impossible for any human being on earth to live a perfectly sinless life
Sounds like you're throwing a temper tantrum.
By the looks of it, @Dizerner
provided a pretty concise description of the human condition.
Adam ate the fruit God told him would result in his death.
That death fundamentally changed his spiritual nature. And that change impacted the entire human race.
THIS is what theologians call original sin.
I have an interesting book about this issue. And because it's so old, the copyright law has released it, and it's VERY inexpensively available.
I'll have to warn you, it's a lengthy read, and is incredibly tedious. Even more so for a guy like you who is constantly throwing temper tantrums at every little thing you don't like.
The title is: Human Nature in its Fourfold State
. The author is Thomas Boston. It was originally published in 1811, so some of the language is really dated.
I picked up my copy for my phone for $0.99 from Amazon.
Each of us, we agree, are inevitably compelled to sin at least once due to our corrupted natures
You're still not understanding why.
Adam's nature was passed along to us.
Adam's nature was separated from God, cutting him, and subsequently the rest of the human race, off from God.
Ranting and whining about it isn't going to change anything.
God created us the way he did, and that's it.
We were created in his image and likeness.
Part of that is that we are given choice. Adam's choice was the tree of life or the tree that brought death.
He chose death. In spite of knowing what it would bring.
However, whereas I ascribe our corrupted natures to a decision made by YHVH/Jesus Christ, my 'esteemed' colleague contends that a corrupt nature that inevitably compels sin is a naturally inheritable occurrence that does not consciously and purposefully come from any particular source
Being separated from God is what makes sin the result.
I think that the book I mentioned above does an excellent job describing the consequences of our being spiritually dead because of our sin. Ephesians 2:1.
It's not a matter of being compelled to sin at least once in our lives...
It's that we're spiritually dead and as such, incapable of doing anything BUT sin.
Ever gone to a funeral?
Ever tried sticking the guy in the casket with a pin, or something sharp?
Did they move, twitch, or flinch?
Ever tried beating a dead animal to get them to move/twitch/flinch?
In case you missed it.... dead people are completely incapable of doing anything. Period.
In like manner, the only way humans can do anything spiritual is by God's Word and the power of the Holy Spirit.
It's why we read in 1 Corinthians 1, that the preaching of the cross is the power of God to salvation.
It's why we read in Isaiah 55 that God's Word will achieve the purpose for which God gave it.
God empowers his Word to give us life. We connect with him when we believe in Jesus.
Who here agrees with this assessment?
This is exactly why I asked you before what you're trying to impose on it.
You're doing yourself more harm than good here by twisting the truth to fit your biases.
God created Adam and Eve.
As we read in Amos, God wants godly offspring.
So he created humans to inherit their parent's DNA.
When Adam died, his humanity was irrevocably damaged.
That damage was passed from parent to child, down through the ages.
God has explicitly provided us with a solution that requires Him and his Word to initiate the solution, and sustain it throughout the rest of our lives on earth.
Failure to engage him on his terms results in retaining the old nature and upon our physical death, we will remain separated from God throughout all eternity.
Those who do engage God on his terms results in our being spiritually regenerated and made spiritually alive. This newly formed nature connects us with God.
Jesus described it in John 3 as being "born again."
It's described in a number of ways throughout the entire bible.
For me, the best description is given in Ezekiel 36:25-27.
In 1 Peter 1, we're born again by God's Word which is eternal.
In Romans 3-8, it's broken into great detail.
It's initialized by trusting Jesus and God's Word.
Once we're regenerated, we're instructed to take on a new mindset and pattern of thinking, which agrees with God's Word.
God gives us his Holy Spirit as a guarantor of our new birth, and to ensure we can learn to understand and live out the life of Jesus in our lives.
Only those who place their trust in Jesus are able to know and experience God in their lives.
No other religious beliefs possess the power to restore our connection between us and God.