Here is a relevant anecdote from Ven. Louis de Blois that I find particularly moving:
"The divine Dionysius the Areopagite, in the Epistle which he wrote to Demophilus, pointing out how great is the goodness and clemency of God towards sinners, and how much our good Lord desires their salvation, relates a beautiful vision shown to St. Carpus, a Bishop to whom many things were divinely revealed, which was narrated to him by Carpus himself.
A certain infidel having led away a Christian from the faith of the Church, Carpus, who ought to have had compassion on them both, and to have most pitifully prayed for them, conceived an inordinate anger and bitterness against both of them. Wherefore he prayed to God to end their lives at once; not being able to endure that impious men who perverted the right ways of the Lord, should be allowed to live. And, behold, looking up, he saw the heavens opened, and Jesus sitting on a throne, with innumerable Angels standing round Him. But, when he turned his eyes downwards, he beheld a deep abyss, in which were a multitude of serpents. At the mouth of this abyss, as it were on the slippery edge, stood the two men, on whom he had wished to bring evil, trembling and exceedingly miserable. And, when he was angry that they were not instantly swallowed up, looking up again to Heaven, he saw the most merciful Jesus, moved with pity, arise from His heavenly seat, and descending, stretch forth to them His most benignant Hand, the Angels at the same time assisting them.
Then the Lord Jesus, turning to Carpus, said, “I am ready, Carpus, to suffer again for the salvation of these men; and it would be pleasing to Me, provided other men would not therefrom take occasion to sin. Do thou consider whether it would be well for thee to
prefer that dwelling full of serpents to the company of God and his good and merciful Angels.”