Through the Gospel it is made known to us what Christ is, that we may learn of Him, moreover, that He is our Saviour. He rescues us from sin and death, and helps us out of every evil, reconciles us to the Father, and, apart from our own works, justifies and saves us. Whoever then does not thus confess Christ must be lost; for although you may know that He is the Son of God, that He died and has risen, and sits at the right hand of the Father,—still you have not yet truly known Christ, it is all of no avail to you; but you must know and believe that He has done it all for your sake, if your faith is to help you. Therefore that is a vain, senseless doctrine that has been hitherto preached and taught in the great schools, which have had no experience of this knowledge, and have only attained to imagine how the curse afflicted Christ our Lord, and how He sits above in heaven unemployed, and possesses a joy with Himself; and thus their hearts remain barren, so that faith cannot live in them. But Christ does not stand there for Himself, but He is to be preached that He is ours. For what necessity could there then have been that He should have come down to earth and have shed His blood? But since He has been sent into the world, as He says, John iii., "that the world through Him might be saved." He certainly must have fulfilled this mission, because He was sent from the Father. For this sending forth and proceeding from the Father is to be understood not only of the divine nature, but also of the human nature and of His ministry. As soon as He was baptized this began, and He has fulfilled it, for which end He was sent and came into the world, to wit, that He might preach the truth and obtain it for us, that all who believe on Him shall be saved. Thus has He revealed Himself, and presented Himself to our knowledge, and offered us grace.
V. 14. As obedient children. That is, conduct yourselves as obedient children. Obedience in Scripture means faith. But the Pope, with his high schools and cloisters, has even wrested the word from us, and falsely rendered what is recorded in Scripture concerning this obedience, as the passage in I. Kings xv.: "Obedience is better than sacrifice." For while they perceive that obedience is highly praised in Scripture, they have usurped the claim of it to themselves, so that they might blind the people, and that men should think it was obedience to their stuff of which the Scripture speaks. Thus they would bring us away from God's word to their lies, and to the obedience of the devil. Whoever hears the word of God and believes thereon, is an obedient child of God. Therefore, whatever is not the word of God, tread it under your feet and pay no attention to it.
Not conformed to the former lusts of your ignorance. That is, that you should not exhibit such ostentation and lead such a course of life as before, and that you be not found in the same condition in which you formerly were. Once you were godless, and lived in lewdness, gluttony, drunkenness, avarice, pride, anger, envy and hate, which was an evil, heathen-like state, and one of unbelief, and when you had gone into such a state like the blind, you have not known what you have done. Avoid now those same evil lusts. Here you perceive how he makes the charge against ignorance, that all evil proceeds therefrom. For where faith and the knowledge of Christ are wanting, there remains mere error and blindness, so that men are ignorant of what is right and wrong, insomuch that the people fall into every kind of vice.
Thus has it been hitherto: where Christ has been kept out of sight and eclipsed, there error has begun to prevail; and throughout the world the question has torn its way, how man may be saved. This is at once a sign of blindness or ignorance, that the true apprehension of faith is lost, and no one knows anything more about it. Hence the world is so full of such various sects, and all are divided, for every one will devise for himself a way to heaven of his own. In our misfortune we must be continually falling deeper in our blindness, since we cannot help ourselves. Therefore St. Peter would say: Ye have already befooled yourselves enough; now desist therefrom, since ye have been instructed and have attained to a correct understanding.
V. 15, 16. But according as He that hath called you is holy, so be ye also holy in all your conduct, as it is written, Be ye holy for I am holy. Here St. Peter quotes a passage from the Old Testament, Lev. xix., where God says: "Be ye holy for I am holy;" that is, since I am your Lord and God, and ye are my people, ye too must be as I am. For a faithful master secures that his people shall be like him, and walk in obedience, and be conformed to the master's will. As then God our Master is holy, so are His people holy also, and we are all holy if we walk in faith. Scripture says not much of the saints that have died, but of those who live on the earth. So David puts forth his claim in Ps. lxxxv.: "Lord, preserve my soul, for I am holy."
But here our learned men have for once perverted the passage, and they say: the prophet had a particular revelation, in that he called himself holy; whereby they themselves confess that they do violence to faith, and have not the revelation of Jesus Christ, otherwise they would surely be sensible of it. For whoever is a Christian experiences within himself such a revelation; but they who do not experience it are not Christians. For whoever is a Christian enters into a participation with Christ our Lord, of all his good things. Since, then, Christ is holy, he must also be holy, or deny that Christ is holy. Hast thou been baptized? then thou hast put on the holy garment, which is Christ, as Paul says.
The word Holy means that which is God's own, and which belongs to Him alone, or as we render it in Dutch (geweiht), consecrated. Thus, Peter here says: you are merely required to give God His own; therefore beware that ye do not suffer yourselves to be led back again to worldly lusts, but let God alone rule, live and work within you; then shall ye be holy, even as He is holy.
Thus he has hitherto described the grace which is extended to us through the Gospel and the preaching of Jesus Christ, and has taught us how we should therefore conduct ourselves, namely: that we abide in a pure, inviolate mind of faith, since we know that no work that we can do or imagine, can at all help us: when such doctrine as this is preached, reason objects, and says, Ah! if that is true, I need not do any good work. And then the great heads fall foul of it, and from a christian condition, educe a freedom of the flesh, imagining they may do what they will. These St. Peter here meets, and anticipates them, and teaches how we are to use our christian freedom only towards God. For nothing more is needed but faith, to the end that I should give God the honor due Him, and embrace Him as my God, confessing that He is just, true and merciful; such faith sets us free from sin and all evil. If now I have made such a return to God, whatever time I yet live I am to live for my neighbor, so as to serve and help him. The greatest work that follows from faith is this: that with my mouth I should confess Christ, sealing that confession with my blood, and laying down my life for it, if so it be. Yet God does not need this work; only I am to perform it, that my faith may thereby be tried and known, so that others also may be brought to believe. Thereafter follow also other works, which must all be directed to this end, that I may thereby serve my neighbor,—all of which God must work in us; for it profits not that we should lead a carnal life and do whatever we please. Therefore St. Peter now says:
V. 17-21. And since ye call on the Father, who judgeth without respect of persons, according to every man's work, pass the time of your sojourning here in fear; and be aware that ye are not redeemed with corruptible silver or gold, from your vain conduct in the traditions of your fathers, but with the precious blood of Christ, as of an innocent and unspotted Lamb, who indeed was provided previously before the world began, but is revealed in these last times for you, who through Him believe on God, who raised Him from the dead, and hath given Him dominion, that your faith and hope might be in God.
So says St. Peter: Ye have through faith hereunto attained, that ye are the children of God, and He is your Father. And ye have obtained an incorruptible inheritance in heaven, (as has been already said.) Thus nothing more now remains, except that the veil be taken away, and that be uncovered which is now concealed, for which ye are still to wait until ye shall behold it.