Except the LORD build the house, they labour in vain that build it: except the LORD keep the city, the watchman waketh but in vain. It is vain for you to rise up early, to sit up late, to eat the bread of sorrows: for so he giveth his beloved sleep.
A pilgrim song, often read at housewarmings. Its subject is the futility of anxious effort rather than a promise about property: building, guarding a city, rising early and staying up late all come to nothing on their own. The last line is about sleep being given.