Who are "Bnei Nechar"?
Rashi: Their deeds are Nisnakeru (estranged) from their Father in Shamayim ? they are Arlei Lev.
Radak: They are foreign to Avodas Beis ha'Mikdash - Arlei Lev and Arlei Basar. Even though we do not find this in the Torah from Moshe, we learn from Yechezkel. It was a tradition; our verse hints to it.
Radak citing Targum Yonasan: People of other nations.
Who are "Arlei Lev"?
Refer to 44:7:1:1.
Radak: They served idolatry.
Who are "Arlei Basar"?
Rashi: A Kohen that his brothers died due to Milah. Radak ? even though this is Ones 1 , Orlah is repulsive to Hashem; he may not serve.
He may not circumcise, due to mortal danger. Therefore, he is not Arel Lev. (PF)
Why does it say "Lechalelo Es Beisi"?
Radak: (The pronoun precedes the noun.) This is like "va'Tir'ehu Es ha'Yeled" (Shemos 2:6).
Malbim: Even if they did not serve and profane Korbanos, they profane the Bayis via being in it. You increased sin via offering through them!
Does he address the people who offer Chelev and blood?
Radak: No. However, since you bring to My house Kohanim improper for Avodah, it is as if you offer it.
Who annulled My Bris?
Radak: They (the improper Kohanim who served). Malbim ? they did not repent, and still annul My Bris.
Why does it say "El Kol To'avoseichem"?
Radak: They were Kohanim for you, for idolatry that you served.
