וַיָּ֨גָר מוֹאָ֜ב מִפְּנֵ֥י הָעָ֛ם מְאֹ֖ד כִּ֣י רַב־ה֑וּא וַיָּ֣קָץ מוֹאָ֔ב מִפְּנֵ֖י בְּנֵ֥י יִשְׂרָאֵֽל׃
And Moab was sore afraid of the people, because they were many; and Moab was overcome with dread because of the children of Israel.
Read halakhic rulings (Jewish law) on Numbers 22:3: and classical halakhic sources.