Board Thread:Character Discussion/@comment-24323512-20140317025407/@comment-4780272-20140321005432

"You shouln't have brought back" sounds more like a warning to me!

Mr. Gold and The Dark One are one in the same so she's probably resurrected or as he says "brought [him] back" (if he really died in the first place). Zelena most likely has the dagger so she's using it to control him to a degree to teach her cast certain spells or make him do it himself!

Due to the complexity of his character(s) it could have multiple meanings and all of those meanings could be applicable! So who knows! But it is definitely a warning of sorts!