וַיַּ֥עַשׂ אַהֲרֹ֖ן וּבָנָ֑יו אֵ֚ת כׇּל־הַדְּבָרִ֔יםאֲשֶׁר־צִוָּ֥ה הֹ בְּיַד־מֹשֶֽׁה׃ {ס} 

And Aaron and his sons did all the things that ה had commanded through Moses.  

 Siftei Hahamim asks Would a righteous man such as
he not do, Heaven forbid, as he was commanded by Hashem? 

 He teaches us that when unity exists within the realm of kedushah, it causes division among the reshaim. On the other hand, if, chas v’shalom, there is a lack of unity within the realm of kedushah, it creates unity among the reshaim.