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.
Related Commentaries of Psalms 71:13
Psalms 71:13
13 Let them be confounded and consumed that are adversaries to my soul; let them be covered with reproach and dishonour that seek my hurt.