One of the methods used by Fiore to torture Jesse, was the use of a heretic's fork that was wrapped around his neck, and nearly punctured his jaw and breastbone. The purpose of said tool, was used on witches to elicit a confession.
The episode title, "Fear of the Lord", is actually a verse from the Book of Proverbs of the New Testament: "The fear of the Lord is the beginning of wisdom, and knowledge of the Holy One is understanding. More specifically, Chapter 9 Verse 10.