What caused Balak to give up and send Bil'am away?
Ramban (on Pasuk 7): When he heard that whoever fights with Yisrael will be defeated, 1 he became afraid and gave up trying to curse them.
Seforno: Refer to 24:10:1:1.
See Pasuk 8.
What are the connotations of "Berach-Lecha"?