The Theology of the Letter to the Hebrews has extraordinary concept which expands linearly with the help of dialectic opposites. Topics of the Revelation of the Son, His divine status, topics of the Incarnation, His redeemable and purifying role, then dominant theme of the High Priest’s mission through famed comparation with Melchizedek, dialectics the Old and the New Testament, thematic of faith and promise and, finally, parenetic message are developed progressively. In this noticeable descent line of the theological exposition (God — Incarnation — faith — exhortation in faith) the author considers that the central topic is the faith — faith which is quantitatively different than the faith of the Old Testament. Still, that faith is founded on The Promise (sic!) given trough Christ — the great Archpriest of the order of Melchizedek — and which, then, has steadfast and eternal character. Faith as Promise, unlike the Old Testament faith, gives certainty to the faithful, thereby making them privileged, but more responsible than Old Testament’s heroes were.