John Gill 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
See (Psalms 70:2) ;

[and] consumed ;
like smoke; see (Psalms 37:20) ; as antichrist will be with the breath of Christ's mouth, and the brightness of his coming, (2 Thessalonians 2:8) ;

that are adversaries to my soul ;
that hated him with a diabolical hatred, as the devil hates the souls of men, and who has his name "Satan" from the word here used; all wicked men are Satans, full of enmity against God, and all good men; and such were David's enemies, spiteful and malicious, and nothing would satisfy them but his life;

let them be covered [with] reproach and dishonour ;
as with a garment:

that seek my hurt ;
see (Psalms 35:26) (Psalms 109:18Psalms 109:19) ; as Absalom and his company; so Arama.