Why is Jesus considered a better mediator of a new covenant?

The New Covenant established by Christ is fundamentally different from the Old Covenant in that it offers a more perfect solution to the problem of sin. In Hebrews, Jesus is referred to as the mediator of a new covenant, highlighting that He not only intercedes for His people but also guarantees the fulfillment of the promises of salvation. Unlike the Old Covenant, which required ongoing sacrifices and was incapable of making anyone perfect, the new covenant established through Jesus' blood provides lasting redemption and reconciliation with God (Hebrews 9:15). The promises under this new covenant include total forgiveness of sins and the empowering presence of the Holy Spirit, marking it as 'better' in every sense.