NET
1 A song of ascents; by Solomon. If the Lord does not build a house, then those who build it work in vain. If the Lord does not guard a city, then the watchman stands guard in vain.
Darby
1 A Song of degrees. Of Solomon.Unless Jehovah build the house, in vain do its builders labour in it; unless Jehovah keep the city, the keeper watcheth in vain
KJV
1 A Song of degrees for Solomon. 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.