Psalms 7:16

7:16 He becomes the victim of his own destructive plans

and the violence he intended for others falls on his own head.

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.