Solidarity is the core trait of this salvation pioneer: “he had to be like his brothers in every way” (17) to make us like him. This solidarity led him to death, and by accepting death controlled by the Devil, he defeated the Devil (cf. Jn 12:31) and death (cf. 1 Cor 15:55) “to free those who, through fear of death, spend their lives in slavery” (15). Thus, Christ becomes High Priest, “mediator” between God and humanity. In the entire New Testament, only Jesus is called ‘Priest’ in this letter.