For it is better This belongs not only to what follows but to the whole context. He had spoken of the profession of faith, which at that time was attended with great danger; he says now that it is much better, if they sustained any loss in defending a good cause, to suffer thus unjustly than to be punished for their evil deeds. This consolation is understood rather by secret meditation, than by many words. It is what indeed occurs everywhere in profane authors, that there is a sufficient defense in a good conscience, whatever evils may happen, and must be endured. These have spoken courageously; but then the only really bold man is he who looks to God. Therefore Peter added this clause, If the will of God be so For in these words he reminds us, that if we suffer unjustly, it is not by chance, but according to the divine will; and he assumes, that God wills nothing or appoints nothing but for the best reason. Hence the faithful have always this comfort in their miseries, that they know that they have God as their witness, and that they also know that they are led by him to the contest, in order that they may under his protection give a proof of their faith.

For it is better, if the will of God be so - That is, if God sees it to be necessary for your good that you should suffer, it is better that you should suffer for doing well than for crime. God often sees it to be necessary that his people should suffer. There are effects to be accomplished by affliction which can be secured in no other way; and some of the happiest results on the soul of a Christian, some of the brightest traits of character, are the effect of trials. But it should be our care that our sufferings should not be brought upon us for our own crimes or follies. No man can promote his own highest good by doing wrong, and then enduring the penalty which his sin incurs; and no one should do wrong with any expectation that it may be overruled for his own good. If we are to suffer, let it be by the direct hand of God, and not by any fault of our own. If we suffer then, we shall have the testimony of our own conscience in our favor, and the feeling that we may go to God for support. If we suffer for our faults, in addition to the outward pain of body, we shall endure the severest pangs which man can suffer - those which the guilty mind inflicts on itself.

For it is better - See on 1-Peter 2:19, 1-Peter 2:20 (note).

(17) For [it is] better, if the will of God be so, that ye suffer for well doing, than for evil doing.
(17) A reason which stands upon two general rules of Christianity, which nonetheless all men do not allow. The one is, if we must suffer afflictions, it is better to suffer wrongfully than rightfully: the other is this, because we are so afflicted not by accident, but by the will of our God.

For it is better, if the will of God be so,.... For all things are ordered by the will of God, even all the sufferings and afflictions of the saints; and which is a reason why they ought to be patiently submitted to, and bore: and "better" it is, more honourable and profitable,
that ye suffer for well doing; for believing in Christ, professing him and his Gospel, giving a free and open reason for so doing, and for exercising a good conscience, and living godly in Christ Jesus:
than for evil doing; as a murderer, a thief, an evildoer, or a busy body in other men's matters, 1-Peter 4:15.

better--One may object, I would not bear it so ill if I had deserved it. Peter replies, it is better that you did not deserve it, in order that doing well and yet being spoken against, you may prove yourself a true Christian [GERHARD].
if the will of God be so--rather as the optative is in the oldest manuscripts, "if the will of God should will it so." Those who honor God's will as their highest law (1-Peter 2:15) have the comfort to know that suffering is God's appointment (1-Peter 4:19). So Christ Himself; our inclination does not wish it.

It is infinitely better, if it be the will of God, ye should suffer. His permissive will appears from his providence.