O vos omnes is a responsory, originally sung as part of Roman Catholic liturgies for Holy Week, and now often sung as a motet.
The text is adapted from the Latin Vulgate translation of Lamentations 1:12.
It was often set, especially in the sixteenth century, as part of the Tenebrae Responsories for Holy Saturday.
Some of the most famous settings of the text are by: O vos ómnes qui transítis per víam, atténdite et vidéte: V. Atténdite, univérsi pópuli, et vidéte dolórem méum.
Translation O all you who walk by on the road, pay attention and see: V. Pay attention, all people, and look at my sorrow: