Charles Ellicott Commentary Hosea 6:8

"Gilead is a city of them that work iniquity; it is stained with blood." — Hosea 6:8 (ASV)

Polluted ...—More accurately, betrodden (or foot-tracked) with blood. We infer from Judges 10:17 that there was a town called Gilead east of the Jordan distinct altogether from Mizpah (identified by many with the city of refuge Ramoth-Gilead), and this is confirmed by notices in Eusebius and Cyril. Murder in a “city of refuge” adds to the horror. On the murderous propensities of the Gileadites see 2 Kings 15:25.