according to the foreknowledge of God the Father, in sanctification of the Spirit, that you may obey Jesus Christ and be sprinkled in his blood: Grace to you and peace be multiplied.
Through sanctification of the Spirit — through the renewing and purifying influences of his Spirit on their souls, unto obedience - to engage and enable them to yield themselves up to all holy obedience, the foundation of all which is the sprinkling of the blood of Jesus Christ - the atoning blood of Jesus Christ which was typified by the sprinkling of the blood of sacrifices under the law, in allusion to which it is called the blood of sprinkling.