The Return of the King
"But how shall a man discover whether that time be come or no, save by daring the Door?" said Éomer. "And that way I would not go though all the hosts of Mordor stood before me, and I were alone and had no other refuge. Alas that a fey mood should fall on a man so greathearted in this hour of need! Are there not evil things enough abroad without seeking them under the earth? War is at hand." (5.3.53)
Flinging on some clothes, Merry looked outside. The world was darkling. The very air seemed brown, and all things about were black and grey and shadowless; there was a great stillness. No shape of cloud could be seen, unless it were far away westward, where the furthest groping fingers of the great gloom still crawled onward and a little light leaked through them. (5.3.76)
"The Lord has given me leave. But, Beregond, if you can, do something to stop any dreadful thing from happening."
"The Lord does not permit those who wear the black and silver to leave their post for any cause, save at his own command."
"Well, you must choose between orders and the life of Faramir," said Pippin. "And as for orders, I think you have a madman to deal with, not a lord." (5.4.181-3)