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 obligated to offer sacrifice for his own sins just as he does for those of the people. 4 And no one takes this honor for himself, but only when 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,

  “You are my Son,
    today I have begotten you”;

6 as he says also in another place,

  “You are a priest forever,
    after the order of Melchizedek.”

— Hebrews 5:1-6