What is the sin if you wish someone dead?

Matthew 5:21-22:

That does it. 99% of Dopers are going to hell.

But we already knew that.

What if you believe in God but wish He were dead? That must be some kind of super-duper uber-sin.

This person you wish was dead isn’t a particular real-estate-developer-turned-politician who’s presently out of office? If so, I identify with you and will get some satisfaction if a certain event that’s supposed to happen in a few days actually does occur. That said, what you’re feeling is an extension of wrath/anger and the only advice I can give you is from a derided chapter from a popular space opera.

Right. The Sermon on the Mount brings up several items that are sins of thought. And the Ten Comandments explicitly condemn coveting.

(In the confessional prayer it is mentioned that you sin by action, by word, by thought and by omission – so, yeah, if you are a Christian of most mainstream traditions, wishing death on someone out of ill will is a sin. Now, how seriously did you entertain that thought does count for something at least in Catholicism)

The Catechism of the Catholic Church puts it this way: “Mortal sin ( * ) destroys charity in the heart of man…it turns man away from God. Venial sin ( ** ) allows charity to subsist, even though it offends and wounds it.”

( * deliberate, conscientious violation of grave matter in direct opposition to what God commands)
( ** mere failure to meet the moral standard )

Right, it’s not directly biblical but comes from teachings of Gregory the Great and other church fathers – often referred as the “capital vices” in that they are patters of thought and deed that “engender other sins, other vices” i.e. they are general ways of acting and thinking that in turn lead into the specific acts and thoughts that are mortal sin.