This sermon on Hebrews 7:20–23 unpacks the eternal priesthood of Christ, showing how God’s oath guarantees a better covenant than the old priesthood of Aaron. Through Jesus, our eternal High Priest and Surety, believers are assured of salvation, forgiveness, and eternal life. Unlike the temporary and weak Levitical system, Christ’s priesthood is grounded in God’s unbreakable promise, ratified by His own blood, and secured forever for His people.

Key points include the superiority of Christ’s priesthood, the durability of God’s oath, and the certainty of salvation in Jesus as Mediator of the new covenant. This teaching encourages Christians to rest in Christ’s unchanging guarantee and rejoice in His saving work.