In the context of ancient Jewish practices, the high priest entered the Most Holy Place once a year with the blood of animals to atone for the sins of the people. However, this was a temporary measure, needing to be repeated annually. In contrast, Jesus, as the ultimate high priest, entered the heavenly sanctuary not with the blood of animals but with his own blood. This act was not just symbolic but transformative, signifying a new covenant between God and humanity.
Jesus' sacrifice was once and for all, meaning it was complete and sufficient to cover all sins for all time. This eternal redemption is a gift that assures believers of their salvation and reconciles them with God. It underscores the depth of God's love and the power of Jesus' sacrifice, which transcends the limitations of the old sacrificial system. The verse invites Christians to reflect on the magnitude of Christ's sacrifice and the profound impact it has on their spiritual lives, offering a sense of peace and assurance in their faith journey.