Albert Barnes Commentary Psalms 71:13

"Let them be put to shame [and] consumed that are adversaries to my soul; Let them be covered with reproach and dishonor that seek my hurt." — Psalms 71:13 (ASV)

Let them be confounded and consumed - See the notes at the similar passage in Psalms 35:4. The sentiment in this verse is the same; the language is slightly varied. See also Psalms 40:14, where the same sentiment occurs.