§ Of Beren and Lúthien The Silmarillion

Now it is told that Beren and Lúthien came in their wandering into the Forests of Brethil, and drew near at last to the borders of Doriath. Then Beren took thought of his vow; and against his heart he resolved, when Lúthien was come again within the safety of her own land, to set forth once more. But she was not willing to be parted form him again, saying: 'You must choose, Beren, between these two: to relinquish the quest and your oath and seek a life of wandering upon the face of the earth; or to hold to your word and challenge the power of darkness upon its throne. But on either road I shall go with you, and our doom shall be alike.'