I have a bugged quest. In fact, several quests that I can't get out of my journal. I assume this game runs on a database, and that table is kept somewhere, yes?
It should be a matter of deleting a record to remove them. I've tried all of the setstage commands and I'm unable to purchase the Lakeview home until I fix this so the Jarl will sell it to me.

BTW, the quest that is holding me up is Amulet of Arkay in Whiterun. I got him his amulet back, even reset the quest and did it again and still no removing this.

Oh, you kill me. How great that would be. Can you imagine being able to return a list of items that match two keywords using a JOIN?

No, unfortunately it has the same decade-old data format structure since Morrowind (it's been extended extensively, of course). Quests run in "stages". You will need to force the execution of the "finish" stage of the quest in question to get it out of your journal. Forcefully removing a record from the Player struct (or however it's stored internally) is probably not a good idea.

Did you try the "completequest " command in the console?

Well Chesko, it's my last resort. Yeah, that would have been too much to ask for, LOL.
Yes, BootySweet, I tried that too. I have a few Collect bounties in there too.

I did however find out how to skip the process and buy the land. This is so I can create my plugin for the Lakeview home.

SetStage BYOHHouseFalkreath 15 - talk to Jarl -> no use
SetStage BYOHHouseFalkreath 30 - talk to Steward -> no use
SetStage BYOHHouseFalkreath 100 - Removed money, then go visit your land. I don't have a house carl but I do have land that I can use to make my mod, while I'm waiting for a fix for the dead quests.