Six Strangers at Apache Springs - S2-E7
Character mistake: Preacher quotes from the bible ("The harvest is past, the summer is ended, and we are not saved") stating it's from Jeremiah chapter 9, verse 20, but she quoted Jeremiah chapter 8, verse 20.
Never Trust an Honest Man - S1-E14
Character mistake: When Heyes and Curry join the poker game with Harlenjen near the start of the episode, Harlenjen says, "Heyes bets," even though it looks like the other guy is betting first, plus he doesn't know Heyes' real name.
Suggested correction: He said "Ace bets", meaning the high card showing on the table places the first bet. The guy replied "Ace bets a hundred."