These are the contexts of the quotes tweeted from @sueannbowling from October 31 though Nov 6. All but the last are from The Fellowship of the Ring, by J. R. R. Tolkien.
“They delved too greedily and too deep.” The dwarves mined too deep in Moria, looking for mithril, and awoke Durin’s Bane.
“They came beyond hope under the sky and felt the wind on their faces.” The fellowship has just escaped from Moria.
“We dare not by our own trust endanger our land.” Haldir, explaining why Gimli, and thus all the fellowship, must go blindfolded through Lorien.
“I can’t bear to think of bringing the news to him.” Frodo, thinking of bringing the news of Gandalf’s death to Bilbo.
“It’s like being at home and being on a holiday at the same time.” Sam’s remarks on Lorien, as they prepare to leave.
“It’s the job that’s never started as takes longest to finish.” Sam’s gaffer’s advice, very apt to their having to leave Lorien to go on with their quest to destroy the ring.
“It’s far too much responsibility to be anything but voluntary.” Homecoming, by Sue Ann Bowling. Derik, assuring Flame that Roi would not be forced into the responsibility he fears.