Hebrews 5:5-6

5So too Christ did not glorify Himself so as to be made a high priest, but He [was exalted and appointed by the One] who said to Him, “You are My Son, Today I have begotten (fathered) You [declared Your authority and rule over the nations]”;

6just as He also says in another place, “You are a priest [appointed] forever According to the order of Melchizedek.”