Answer: It is sanctification in principle, a truth of deep importance, ignored everywhere in Christendom, by Protestants as well as Romanists, by Calvinists no less than by Arminians. For by it is meant true living separation to God from the starting-point of faith, when one is “born of water and Spirit,” in a new nature. This cries, as Saul of Tarsus did when converted, Lord, what wilt Thou have me to do? It is therefore as we see here, “unto obedience”; not only so but to Christ’s obedience, not as a Jew under law, but as a child obeying its Father under grace, even though the sprinkling of the blood or justification had yet to be learned, however soon it may follow. Hence we read in 1 Cor. 6:1111And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the Spirit of our God. (1 Corinthians 6:11) “washed, sanctified, justified”: the order of which is inexplicable to such as overlook the absolute setting apart, or personal sanctification, of believers from their first breath of new life as “born of God.” The Washing looks at our previous uncleanness, the sanctification at our separation to God, the justification at our resting on Christ’s work of redemption, as the other two precede and go together.
If any one wishes to see the havoc done to scripture by a pious and learned man, through confounding these two senses of sanctification, both equally true and essential to Christian intelligence, let him consider Th. de Bèze’s version of 1 Peter 1 and the notes in any of his five folio editions of the Greek Testament; in which he makes κατὰ-ex! ἐν-ad! and εἰς-per! It is a total and inexcusable falsification through prejudice. Verses 15 and 16 of the same chapter do exhort to actual day-by-day holiness or sanctification in practice. Popery and Puseyism confound justification with practical sanctification to the loss of the truth as to both. The great value of the truth, so generally found wanting, can hardly be exaggerated, Romish theology being utter confusion and that of the Puritan partial and one-sided. Scripture alone is the truth which co-ordinates, and is worthy of all trust.
Again, the Authorized and the Revised Versions are fairly correct: elect “according to.” But “by” is better than “through”; and “in” is equivalent to “by,” as it here can only mean “by virtue, or in the power, of.” And both agree in rendering “unto” obedience, which is alone right or possible on any sound principle. We are called to obey, as Christ obeyed, filially, and not in the bondage of the law like Israel; whilst instead of having the blood of victims as its sanction threatening death on failure, we have the sprinkling of His blood cleansing us from all sin.