You — Builders, or watchmen. To sit — To use constant and unwearied diligence. So — By his blessing. Giveth — Freely, without that immoderate toiling, wherewith others pursue it.
Related Commentaries of Psalms 127:2
Psalms 127:2
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.