Christ learned obedience through suffering. Some suffering is the result of others' sins. In view of the ordeal that Jesus endured, it can never be charged fairly that human suffering is at odds with the existence of a benevolent Creator. There is no access to eternal redemption apart from the Savior. Fourth, the Lord is the source of salvation only to those who obey him.
Sustained obedience is essential to the reception of eternal salvation.
Having said all of this, we now direct our attention to the most difficult aspect of the narrative. So the common translations would appear to suggest. The Greek word is teleioo, and the term has a variety of possible meanings. It can denote to fulfill, to bring something to its goal, to make perfect, to consecrate, etc. But it is Christ, as high priest, that is in view in the letter to the Hebrews.