Psalms 73:13

73:13 I concluded, “Surely in vain I have kept my motives pure

and maintained a pure lifestyle.

Psalms 127:1

Psalm 127

A song of ascents, by Solomon.

127:1 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.