How did Hashem answer Moshe's query?
Ramban #1: Hashem informed Moshe that if he did not want to be cured 1 that was fine with Him, and that, as for the problem with a person with 'uncircumcised lips' appearing before Pharaoh, He would see to it that whenever Moshe spoke in His Name, He would personally place the words in his mouth, so that they came out eloquently.
Ramban #2: Refer to 6:12:1:1.
What is the definition of "mi'Chutz la'Machaneh"?
Rashi: Outside all three camps (the Machaneh Shechinah, the Machaneh Leviyah and the Machaneh Yisrael); and at the time of the Beis-ha'Mikdash, outside Yerushalayim.
Why does the Torah find it necessary to add "el Makom Tahor"?
Rashi: Because there was also a Tamei location outside the town that was designated for stones of a house with Tzara'as.
What does "el Shefech ha'Deshen" refer to?
Why does the Torah repeat "el Shefech ha'Deshen ... "?
Rashi: To teach the Kohen to burn the bull on that spot even if there are no ashes there. 1
See Sifsei Chachamim.
What is "v'Horeisicha"?
Hadar Zekenim (1): It is an expression of Herayon (pregnancy); it will be like a new creation (Moshe's ability to speak).
Hadar Zekenim (2): It is an expression of shooting arrows (Hashem will put words in Moshe's mouth).
Why is it burned outside the camp, in public view?
Moshav Zekenim citing the Rosh: This is so one will not be ashamed [to confess] his sin, [rather,], he will confess on it, for [he sees that] even the Kohen Gadol confesses and brings his Chatas.