Twice in the Torah is the commandment given to offer two lamb sacrifices- one in the morning and one in the afternoon- once in Parshat Tetzaveh (Shemot 29:39), in the context of the initial dedication of the Tabernacle, and once in Parshat Pinchas (Bamidbar 28:4), in the context of the daily service. In Tetzaveh, the Torah uses the phrase את הכבש האחד (the one lamb,) while in Pinchas, the Torah uses the phrase את הכבשאחד (one lamb.) Why the discrepancy?
The Brisker Rav (1886-1959) explains that the Torah is hinting at a halachic difference regarding the two lambs. On a regular day, the two lambs are independent of each other in the sense that even if one becomes blemished or lost and cannot be offered, the other one is not disqualified. However, at the dedication of the Tabernacle, the first time these lamb sacrifices were ever brought, both designated lambs had to be offered together, or else neither would have been permitted. That is why the Torah speaks of "the lamb."
The Sefer Shemen HaTov comments that we learn from here the importance of starting an endeavor on the right footing. The way something begins sets the tone for what develops later. If it cannot be done right, it is better that it not be done at all. That is why the halacha governing the dedication of the Mishkan was both or neither. (Based on the Sefer, L'Chaim)
Rabbi Michael Macks will be contributing weekly divrei torah as he is able