Revised Standard Version
5 For every high priest chosen from among men is appointed to act on behalf of men in relation to God, to offer gifts and sacrifices for sins. 2 He can deal gently with the ignorant and wayward, since he himself is beset with weakness. 3 Because of this he is bound to offer sacrifice for his own sins as well as for those of the people. 4 And one does not take the honor upon himself, but he is called by God, just as Aaron was.
5 So also Christ did not exalt himself to be made a high priest, but was appointed by him who said to him,
“Thou art my Son,
today I have begotten thee”;
6 as he says also in another place,
“Thou art a priest for ever,
after the order of Melchiz′edek.”