Moab was sore afraid As Moses had foretold of Moab in particular, (Exodus 15:15,) and as the Lord himself had promised concerning all nations in general, Deuteronomy 2:25. The Moabites were afraid lest the Israelites should destroy or expel them out of their country, as they had done the Amorites; for they knew nothing of God's command, prohibiting them from disturbing the Moabites in their possessions.
Related Commentaries of Numbers 22:3
Numbers 22:3
3 And Moab was sore afraid of the people, because they were many: and Moab was distressed because of the children of Israel.