Isaiah 21: 11-12. “The burden of Dumah. He calleth to me out of Seir, Watchman, what of the night? Watchman, what of the night? The watchman said, The morning cometh, and also the night: if ye will enquire, enquire ye: return, come.”
Dumah is Edom. Dumah means the silence of death. Isaiah, the watchman, receives an enquiry, earnest in its repetition. “How far on is it in the night?” The reply is to the effect that while the morning is coming, night will yet envelop it. If they wish to enquire, let them do so, but the one thing necessary is that they should turn to God in repentance.
Another interpretation of the end of the passage in verse 12 is that Isaiah invited the inquirers to return if they wanted further information regarding the present night, the new day and the new night to follow the morning.