Accepting "Indulgence" would be like:
1. Telling God that Jesus's Life, Death and Resurrection is not
Perfect.
2. Telling God that the justification of those who come to Him
through Christ can be "bought and sold" through the hands of those
created by God Himself.
"Now may the God of peace, who brought again from the dead the
great shepherd of the sheep with the blood of an eternal
covenant, our Lord Jesus, make you complete in every good
work to do his will, working in you that which is well pleasing in
his sight, through Jesus Christ, to whom be the
glory forever and ever" - Hebrews 13: 20-21
______________
Hebrews 13: 9 - 14 speaks volumes against such man-made
practices.
"Do not be carried away by all kinds of strange teachings. It is
good for our hearts to be strengthened by grace, not by ceremonial
foods, which are of no value to those who eat them. We have an
altar from which those who minister at the tabernacle have no right
to eat.
The high priest carries the blood of animals into the Most Holy
Place as a sin offering, but the bodies are burned outside the
camp. And so Jesus also suffered outside the city gate to make the
people holy through his own blood. Let us, then, go to him outside
the camp, bearing the disgrace he bore. For here we do not have an
enduring city, but we are looking for the city that is to come.
"