וַיֻּגַּ֥ד לְשָׁא֖וּל לֵאמֹ֑ר הִנֵּ֣ה דָוִ֔ד בנוית [בְּנָי֖וֹת] בָּרָמָֽה׃
혹이 사울에게 고하여 가로되 다윗이 라마 나욧에 있더이다 하매
Rashi
In Nayos. In the house of study.2Radak explains that נָיוֹת is derived from the word נָוֶה [=beauty], referring to the Beis Hamikdosh, which is the beauty of the world. They were sitting in Romoh engaged and seeking a location for the Beis Hamikdosh, the beauty of the world.