Proverbs 31:9 (BSB)

Open your mouth, judge righteously, and defend the cause of the poor and needy.

From Proverbs 31. Also in the ESV.

Commentary on Proverbs 31:9

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on Proverbs 31:1-9: Most interpreters are of opinion that Lemuel is Solomon; the name signifies one that is for God, or devoted to God; and so it agrees well enough with that honourable name which, by divine appointment, was given to Solomon (Sa2 12:25), Jedediah - beloved of the Lord.
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on Proverbs 31:9: Open thy mouth, judge righteously,.... Having heard the cause, pronounce a righteous sentence; deliver it freely and impartially, with all readiness and boldness, not caring for the censures of wicked and unjust men; and plead the cause of the poor and needy; who are oppressed by the rich, cannot plead for themselves, nor fee others to plead for them; do thou do it freely and faithfully.
• Keil & Delitzsch (Lutheran), Biblical Commentary on the Old Testament on Proverbs 31:8-9: Pro 31:8-9 8 Open thy mouth for the dumb, For the right of all the children of leaving; 9 Open thy mouth, judge righteously, And do right to the poor and needy. He is called dumb who suffers the infirmity of dumbness, as עוּר and פּסּח, Job 29:15, is he who suffers the infirmity of blindness or lameness, not here figuratively; at the same time...