Hebrews 5:4

And no man takes this honor to himself, but he who is called by God, just as Aaron was.

Surrounding context

5:3 Because of this he is required as for the people, so also for himself, to offer sacrifices for sins.

5:4 And no man takes this honor to himself, but he who is called by God, just as Aaron was.

5:5 So also Christ did not glorify Himself to become High Priest, but it was He who said to Him: "You are My Son, Today I have begotten You."

Translation and sources