Defend the poor and fatherless As far as justly you may: for so this clause must be limited, as appears by comparing it with Leviticus 19:15. Do justice to the afflicted and needy Hebrew, הצדיקו, hatzdiku, justify him, namely, when his cause is good, and he is oppressed by a potent adversary. Deliver the poor and needy These he recommends to the special care and protection of magistrates, because such are commonly neglected and crushed by men in higher place and power, and are unable to relieve or right themselves.
Related Commentaries of Psalms 82:3
Psalms 82:3-4
3 Defenda the poor and fatherless: do justice to the afflicted and needy.
4 Deliver the poor and needy: rid them out of the hand of the wicked.