Speak, ye that ride on white asses, ye that sit in judgment, and walk by the way. Ye that ride on white asses - Perhaps אתנות צחרות athonoth tsechoroth should be rendered sleek or well-fed asses; rendered asinos nitentes, shining asses, by the Vulgate.
Ye that sit in judgment - ישבי על מדין yoshebey al middin; some have rendered this, ye who dwell in Middin. This was a place in the tribe of Judah, and is mentioned Joshua 15:61.
And walk by the way - Persons who go from place to place for the purposes of traffic.