I’m not Catholic, but FWIW, I always thought the meanest things were what Jesus said in Matthew 23:
https://www.biblegateway.com/passage/?search=matt+23&version=GNT
However, I think this passage points out that when God does judge man, He won’t be doing so regretfully. Those who die in their sins, still rejecting God, face wrath.
As a corollary, we ought to take from this how God views sin - and then try to view sin in our lives the same way. I tend to make excuses for my sin. God does not.
If Truth counts, Jesus was/is a mean Man!!!!!!