John Gill Commentary Psalms 82:4

"Rescue the poor and needy: Deliver them out of the hand of the wicked." — Psalms 82:4 (ASV)

Deliver the poor and needy
From his adversary and oppressor, who is mightier than he, and draws him to the judgment seat; when it is not in his power to defend himself against him, and get out of his hands, unless a righteous judge will show a regard to him and his cause; and sometimes even an unjust judge, through importunity, will do this, as everyone ought, and every righteous one will:

rid them out of the hand of the wicked ;
this was what the poor widow importuned the unjust judge for, and obtained, (Luke 18:3–5) .