What are the connotations of "li'Retzonchem"?
Rashi: When you bring a Korban Olah, be sure to bring one that will cause Hashem to accept it - a male that is not blemished.
Seforno: It comes to preclude Kodshei Bedek ha'Bayis, which do not come to appease, from the prohibition of Ba'alei-Mumin.
Why is one not permitted to bring a Ba'al-Mum on the Mizbe'ach?
Seforno #2 (on Pasuk 20): Because one would not bring a blemished animal before one's king. 3
Seforno #3 (Ibid.): Even if the animal is without blemish when it is designated, and becomes blemished only afterwards, one may not bring the Emurim on the Mizbe'ach, 4 because Hashem detests Ba'alei-Mumin.
Why does the Pasuk see fit to spell out "ba'Bakar, ba'Kesavim uva'Izim"?