Send ye the lamb to the ruler of the land from Sela to the wilderness, unto the mount of the daughter of Zion.
Send ye the lamb to the ruler of the land - advice of the prophet to the Moabites who had fled southwards to Idumea, to send to the King of Judah the tribute of lambs, which they had formerly paid to Israel, but which they had given up (2 Kings 3:4-5). David probably imposed this tribute before the severance of Judah and Israel (2 Samuel 8:2). Therefore Moab is recommended to gain the favour and protection of Judah by paying it to the Jewish king. Type of the need of all submitting to Messiah (Psalms 2:10-12; Romans 12:1).
From Sela to the wilderness - rather, 'from Petra through (literally, toward) the wilderness.' Hebrew, midbaaraah (H4057) (Maurer). All the Moabites are addressed with this injunction, whose boundaries reached from Sela, or Petra of Idumea, toward the wilderness of the Jordan. cela` (H5553) means 'a rock;' Petra, in Greek, the capital of Idumea and Arabia Petrea: the dwellings are mostly hewn out of the rock. The country around was a vast common ("wilderness") or open pasturage, to which the Moabites had fled on the invasion from the West (Isaiah 15:7).
The ruler of the land - namely, of Idumea; i:e., the King of Judah Amaziah had become master of Idumea and Selah (2 Kings 14:7).