Did I miss anything?

[Esquilax]

Because God is perfectly just, the scales of justice require a payment for injustice.

Justice is reflected in actions, not definitional fiat. The actions of god are not just, let alone perfectly just, and so simply asserting the perfection of god's justice isn't persuasive.

Unless you're trying to tell me that "perfect justice" is just some intrinsic part of god's nature no matter what he does, in which case you've denuded the word "justice" of all meaning.

Only a perfect being can redeem an imperfect one.
The imperfect one, having his own debt cannot redeem himself.

How did you determine that?

If you owe a million dollars and you do not have it- your only shot is letting someone else pay it for you.
If you refuse the offer of payment- you have to pay the penalty.
It is an issue of justice.
And in this case, the Judge paid our pardon, but we are required to take it, or the pardon is left on the table and does not belong to us.

And if I didn't borrow a million dollars, or incur a million dollars worth of damage or debt personally, but some random dude I don't know starts insisting that I pay some other person I don't know's debt because that's somehow mine for no reason, do I have to accept a pardon for that?

Do I have to pay every ridiculous, imaginary fantasy debt that makes no sense, basically? Or do debts conform to rules, with no magic allowed?