Every high priest is chosen from among the people to be their representative in their dealings with God. He presents their gifts and sacrifices for their sins.
He is able to deal gently with the ignorant and those going astray because he himself suffers from the very same weaknesses. That’s why he has to offer sacrifices for his own sins, as well as for everyone else. No one can become a high priest simply because he wants such an honour. He must be called by God for this work, just as Aaron was.
That’s why Christ didn’t choose the position of high priest for himself. No, he was chosen by God, who said to him, “You are my Son. Today I have become your Father.” And in another place, God said to him, “You are a priest forever in the order of Melchizedek.”
While Jesus was here upon earth, he offered prayers and petitions, with loud cries and tears, to the one who could save him from death. And he was heard because of his deep reverence.
Even though he was God’s Son, he learned obedience through suffering. In this way he was made a perfect high priest, and became the source of eternal salvation for all those who obey him. And God designated him to be a high priest in the order of Melchizedek.
There is a lot more we’d like to say about this, but it’s difficult to explain because you seem to have given up trying to understand. Though by this time you should be teaching others, you still need someone to teach you the basic truths of God’s word. You need milk, not solid food! For anyone who lives on milk is still an infant and hasn’t yet been weaned. Solid food is for the mature – those who through constant practice can distinguish between right and wrong.
So, let’s stop going over the basic teachings about Christ and go on to more mature matters. Let’s go beyond the fundamentals: repentance from wicked behaviour, faith in God, instruction about baptism, the laying on of hands, the resurrection of the dead and eternal judgment. And so, if God permits, we’ll move on to other things.