Tehillim 127:1-2

Orthodox Jewish Bible

127 (Shir HaMa’alot, of Shlomo). Except Hashem build the bais, they that build it labor in vain; except Hashem is shomer over the city, the shomair (watchman) stands guard in vain.

² It is vain for you to rise up early, to sit up late, to eat the lechem ha’atzavim (bread of toils); for so He giveth his beloved sleep.