Every high priest is taken from the people and put in charge of things that relate to God for their sake, in order to offer gifts and sacrifices for sins.
References for Hebrews 5:1
The high priest is able to deal gently with the ignorant and those who are misled since he himself is prone to weakness.
Because of his weakness, he must offer sacrifices for his own sins as well as for the people.
No one takes this honor for themselves but takes it only when they are called by God, just like Aaron.
In the same way Christ also didn't promote himself to become high priest. Instead, it was the one who said to him, You are my Son. Today I have become your Father,
as he also says in another place, You are a priest forever, according to the order of Melchizedek.
References for Hebrews 5:6
During his days on earth, Christ offered prayers and requests with loud cries and tears as his sacrifices to the one who was able to save him from death. He was heard because of his godly devotion.
Although he was a Son, he learned obedience from what he suffered.
After he had been made perfect, he became the source of eternal salvation for everyone who obeys him.
He was appointed by God to be a high priest according to the order of Melchizedek.
We have a lot to say about this topic, and it's difficult to explain, because you have been lazy and you haven't been listening.
Although you should have been teachers by now, you need someone to teach you an introduction to the basics about God's message. You have come to the place where you need milk instead of solid food.
Everyone who lives on milk is not used to the word of righteousness, because they are babies.
But solid food is for the mature, whose senses are trained by practice to distinguish between good and evil.