Which illustrates my point exactly. If grave and mortal where the same thing, the catechism would have no need to use both in a single sentence. Grave would mean mortal, and mortal would mean grave. Once again, mortal sins are grave. Not all grave sins are mortal.
I would suggest the meaning is the same so they CAN use it in the same sentence.
The distinction in the following passages, is made between grave injury or grave harm . “Grave” is the key in making a sin mortal. When something reaches the level of grave status, that’s when an action is mortal sin. If it is not grave, then it is not mortal.
**2484 **The
gravity of a lie is measured against the nature of the truth it deforms, the circumstances, the intentions of the one who lies, and the harm suffered by its victims. If a lie in itself only constitutes a venial sin,
it becomes mortal when it does grave injury to the virtues of justice and charity.
**2539 **Envy is a capital sin. It refers to the sadness at the sight of another’s goods and the immoderate desire to acquire them for oneself, even unjustly. When it wishes
grave harm to a neighbor it is a mortal sin:
If grave has a squishy meaning, no one would be clear on the meaning of grave or mortal…true? . Therefore, I would think given our fallen tendancies, if the definition was squishy, we would lean towards reducing all our offenses to misdemeanors or no offense at all. I think that might be the problem Paul ran into with the Galatians. So he had to warn them as sternly as he could, that they would not inherit heaven with these sins he mentions, if they are on their souls at death. [Gal 5:19-21] i.e. they are mortal sins.
If one is looking for lists of mortal sins in scripture there is one pretty good list.
b:
In your example of someone receiving a mortal wound, it’s only mortal if they die from it.
True. And in the spiritual sense, the soul suffers a mortal wound with regards sanctifying grace and charity, with reference to God
b:
Otherwise it was presumed to be a mortal wound and was not.
With regards to sin, If it’s that close of a call, in one’s mind, it’s wise imo, to treat the offense as mortal and confess it as if it was mortal.