Hebrews 5:4-8

And no one takes the honor for himself, but receives it when he is called by God, just as Aaron also was.

So too Christ did not glorify Himself in becoming a high priest, but it was He who said to Him, “You are My Son, Today I have fathered You”;

just as He also says in another passage, “You are a priest forever According to the order of Melchizedek.”

In the days of His humanity, He offered up both prayers and pleas with loud crying and tears to the One able to save Him from death, and He was heard because of His devout behavior.

Although He was a Son, He learned obedience from the things which He suffered.