How do we know that Christ fulfills the role of the high priest?

In Hebrews 7:25-27, we learn that Christ is the high priest who is able to save completely those who come to God through Him, highlighting that He lives forever to intercede for them. This is fulfilled in the context of the blessings pronounced in Numbers 6, where Aaron, as the high priest, is a type of Christ. The sacrificial system he represents points to the ultimate sacrifice Christ made for our sins, which establishes Him as the perfect and eternal high priest, meeting the requirements of God’s law and securing forgiveness for His people.