Isaiah 16:1

Send ye the lamb R.V. the lambs. The imper. expresses dramatically the result of the deliberations of the Moabites. The word "lamb" is to be taken collectively; it denotes the tribute in kind which the Moabites had been accustomed to pay to the kings of Israel (2 Kings 3:4), but which they now propose to send to the king of Judah, the "ruler of the land" (of Edom).

from Sela to the wilderness R.V. less appropriately "which is toward the wilderness." The wilderness is the desert tract between Sela and Jerusalem which would have to be traversed by the messengers of Moab. Sela("rock"), a city of Edom (2 Kings 14:7), is commonly supposed from the identity of the designations to be the later Petra. There is, however, no positive evidence in support of the identification; and Judges 1:36 seems to point to a locality near the southern end of the Dead Sea (See Moore, Commentary on Judges, pp. 56 f.).

the mount … Zion ch. Isaiah 10:32.