Then he failed, he was found a liar,, found to be untrustworthy
The question was not about Paul. It was about the debt. So, answer the actual question.
If Paul failed to pay the debt did his promise pay the debt or did the slave still owe the debt? Did the debt go unpaid until Paul applied the money to the debt?
Now we all know how any reasonable person would answer those questions.
So let's apply that reasonableness to the questions:
If Jesus agreed to pay the sin debt of the sinner, was the debt of the sinner paid simply by his agreeing to do so? Was it paid before it was actually applied to his debt?
If it were paid before it was applied to the debt, and the elect are never condemned for their sin as a result, exactly what debt do they owe?
Don't repeat yourself. Answer the questions and the questions @John Bauer asked. It is reasonable for us to not only ask that you do so, but reasonable to expect that someone who knew they were right fighting and not properly conducting a forum conversation, (that they were wrong and being illogical and unscriptural in fact), would refuse to do so. That they would act like they were never asked and instead deflect to something else or repeat their position. All of which violates a number of rules.
If the surety failed. Yes because justice must be satisfied, the debt hasn't been satisfied
Correct. But you have asserted by your reasoning that the elect had no debt. That Christ's agreement to be a surety itself paid the debt that didn't exist. And that was the point of my asking about Paul's promise to pay a debt. His promise did not pay the slave's debt.
Do you suppose Christ may have proved a failure, even the remotest possibility? Could the Father been less than 1000% His Son would pay the debt ? In fact b4 the Surety ever literally died, the Father said this Matt 3 17
: 17 and lo a voice from heaven, saying, This is my beloved Son, in whom I am well pleased.
That is utterly beside the point. Every deflection is duly noted. The question isn't about the certainty of Christ dying for his sheep. It is about when it actually removes guilt and condemnation from the elect. The Scripture used does not apply to the subject of surety or justification.
Do you realize that if a debt was paid before it ever became a debt, then no debt was paid since there was no debt? Do you recognize that? Answer the question.