What were the Kohen’s most important tasks?

Shimon Ben Pazi claimed that the Tora's most important passuk
comes from this week's parasha. Ben Pazi quoted from Parashat
Tetzave. 


אֶת־הַכֶּבֶשׂ הָאֶחָד תַּעֲשֶׂה בַבֹּקֶר וְאֵת הַכֶּבֶשׂ
הַשֵּׁנִי תַּעֲשֶׂה בֵּין הָעַרְבָּיִם׃


“The first lamb you shall sacrifice in the morning and the second
lamb you shall sacrifice in the evening.” (Shemot 29;39 and
Bamidbar 28;4) referring to the daily Tamid (perpetual) offering
brought every morning and evening. 


Why should the offerings done daily be the best way to explain
the Jewish way of life? 


Mark Zuckerberg's speech is from here:
https://vimeo.com/111171647