Yasher Koach BaalHabooze.
Just a short, deep thought on Lech Lecha. Malki Tzedek lost his status as Kohein by preceding the Brocha of Hashem by the brocha of Avrohom. Why this act?
The Rambam defines the uniqueness of Shevet Levi, and those that follow their path. They abandon the normal venues of Hishtadlus. Therefore, Hashem gives them what they need directly.
Hashem controls everything that happens. We can identify two parts to salvation. One, the salvation itself. Two, the fact that it was Hashem who orchestrated the salvation. Most of mankind focuses on attaining salvation by dint of their own efforts. However, they ask Hashem to help. Shevet Levi focuses on asking Hashem to help, while providing an outlet of Hishtadlus as the means of His blessing to materialize. The difference between these approaches is the difference of Shevet Levi vs the rest of mankind.
By addressing Avrohom’s involvment before Hashem’s, Malki Tzedek in some degree, revealed that his approach resembled the common approach. Not the approach of Levi.