Isaiah 21:2

this vision being also dreadful, was revealed to me. The treacherous dealeth treacherously; the transgressor transgresseth; the Elamites are upon me; and the elders of the Persians are coming against me. Am I now to groan and comfort myself?

so a fearful and a grievous vision was declared to me: he that is treacherous deals treacherously, the transgressor transgresses. The Elamites are upon me, and the ambassadors of the Persians come against me: now will I groan and comfort myself.