What does it mean that Jesus is the high priest in the new covenant?

In Hebrews, Jesus is presented as the perfect high priest who mediates a better covenant. His role surpasses that of the Old Testament priests, as He offered Himself as the final sacrifice (Hebrews 10:12). This means that believers can have direct access to God without the need for any earthly mediator. His priesthood ensures that the covenant is based on His righteousness and perfect obedience, thus establishing a relationship where believers are seen as righteous and holy before God.