Psalms 7:15-16

15He makes aa pit, digging it out,
and falls into the hole that he has made.
16His bmischief returns upon his own head,
and on his own skull his violence descends.

Psalms 9:15-16

15 The nations have sunk in cthe pit that they made;
in dthe net that they hid, their own foot has been caught.
16The Lord has made himself eknown; he has executed judgment;
the wicked are snared in the work of their own hands.  Higgaion.
Probably a musical or liturgical term
Selah

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