Does neglecting or forgetting to perform the penance issued during Confession invalidate the Sacrament?

[RosslynV]

1. The penitent forgets to do the penance. Weeks or months go by. The Penitent forgets what the priest said for him to do. What now?
2. The penitent forgets to do the penance. Weeks or months pass by. The individual feels the need to confess another sin(s) in Confession. Does neglecting to do the penance invalidate the previous Confession? [edited]

Thanks in advance.

 

[John_of_Woking]

Usually penances are well known prayers such as ‘Our Father’, ‘Hail Mary’ or ‘Glory Be’. You are likely to have prayed these since you were allocated your penance. If you go to a regular confessor you are likely to understand the type of penances the Priest imposes. This being so just recite a Rosary and you will have ticked all the boxes!

No your previous confession would not be invalidated. God would not be angry.

 

[RosslynV]

My 1st response. Cool!! very kind of you

 

[thistle]

1. The penitent forgets to do the penance. Weeks or months go by. The Penitent forgets what the priest said for him to do. What now?
2. The penitent forgets to do the penance. Weeks or months pass by. The individual feels the need to confess another sin(s) in Confession. Does neglecting to do the penance invalidate the previous Confession? [edited]

Thanks in advance.

[edited]

As to your questions, absolution being valid is not conditional upon penance being done.

If you genuinely forget to do your penance and then you can’t remember what it was choose a penance for yourself. Its not a sin to forget.

On the other hand if you refuse to perform the penance then that is a sin and would have to be confessed at next Confession.