Hebrews thus considers also the present lordship of Christ as a high priestly Office. As a result of this conception of the High Priest, the author connects as closely as possible Christ’s present work and His once-for-all act. “Consequently He is able for all time to save those who draw near to God through Him, since He always lives to make intercession for them” (7:25). This quite clearly indicates a high priestly office which Christ continues to fulfil in the present since His resurrection, and eis to pavteles (throughout all time).
—Oscar Cullmann, “Jesus the High Priest”, Christology of the New Testament, 101-2