Why does the Torah write "va'Yikar" in connection with Bil'am, and "va'Yikra" in connection with Moshe?
Rashi and Ramban: Refer to Vayikra, 1:1:5:1. 1 (When Hashem appeared to Bil'am, his hair stood on end, a trembling seized him, he was gripped with terror, his whole demeanor changed and he fell on his face to the ground - Ramban).
Refer to Vayikra, 1:1:5:2.
Why, on this occasion, did Hashem appear to Bil'am by day?
Rashi and Ramban: In honor of Yisrael.
Why did Bil'am refer to "Shiv'as ha'Mizbechos" with a 'Hey'?
Why did he tell Hashem about the Mizb'chos that he had built?
Ramban (on Pasuk 1): He did so in the form of a prayer, in the hope that Hashem would accept his sacrifices favorably and grant him his request - but He did not. 1
See Pasuk 5.
Why did he see fit to conclude "Va'a'al Par va'Ayil ba'Mizbe'ach"?
Rashi: He was boasting that, whereas Avraham brought only a ram on the Mizbe'ach, he brought a bull as well (on each one)!