§ Of the Coming of Men into the West The Silmarillion

It is said that in all these matters none save Finrod Felagund took counsel with King Thingol, and he was ill pleased, both for that reason, and because he was troubled by dreams concerning the coming of Men, ere ever the first tidings of them were heard. Therefore he commanded that Men should take no lands to dwell in save in the north, and that the princes whom they served should be answerable for all that they did; and he said: 'Into Doriath shall no Man come while my realm lasts, not even those of the house of Bëor who serve Finrod the beloved.' Melian said nothing to him at that time, but afterwards she said to Galadriel: 'Now the world runs on swiftly to great tidings. And one of Men, even of Bëor's house, shall indeed come, and the Girdle of Melian shall not restrain him, for doom greater than my power shall send him; and the songs that shall spring from that coming shall endure when all Middle-earth is changed.'