American Standard Version
Open thy mouth, judge righteously, And minister justice to the poor and needy.

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

Douay-Rheims Bible
Open thy mouth, decree that which is just, and do justice to the needy and poor.

English Revised Version
Open thy mouth, judge righteously, and minister judgment to the poor and needy.

King James Bible
Open thy mouth, judge righteously, and plead the cause of the poor and needy.

World English Bible
Open your mouth, judge righteously, and serve justice to the poor and needy."

Young's Literal Translation
Open thy mouth, judge righteously, Both the cause of the poor and needy!'

Proverbs 31:9 Additional Translations ...