For a more spiritual audience: the analogy is also widely recognized in the Bible

For what it's worth, I wanted to downvote this because it doesn't provide much additional context. Which verses? Is there a link?

(I didn't downvote)

Saying "oh yeah the bible mentions that" doesn't really add to a conversation - the bible mentions a lot of stuff!

However, if I downvote you because you didn't provide context, you might misinterpret it as "wow, hacker news hates the bible" (I have no opinion on hn audience feelings towards religion)

So for additional context, one could look up the "speck vs log" which seems most straightforwardly about taking care of your own issues first (although it's in the context of hypocrisy, which doesn't quite match the original thread iiuc)

I found a few others, but none quite seemed like the close match I was hoping for (Mark 12:31, 1 Corinthians 6:19-20, etc)