Psalm 127:1 in the World English Bible
Unless the LORD builds the house, they who build it labor in vain. Unless the LORD watches over the city, the watchman guards it in vain.
Context
1 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.
2 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.