Two things are here to be inquired into. FIRST, What the apostle here means by the will of God. SECOND, What suffering according to the will of God is.
FIRST, For the will of God, it is divers ways taken in the scriptures; as, sometimes, for electing, justifying, sanctifying acts of God; sometimes for faith, good life, and sometimes for suffering for his name (Rom 9; Eph 1:11; John 7:17; 1 John 3:23; 1 Thess 4:3; Matt 7:21). But, by will of God here we must, First, Understand HIS LAW AND TESTAMENT. Second, HIS ORDER AND DESIGNMENT.
[THE WILL OF GOD MEANS HIS LAW AND TESTAMENT.]
First, By his will I understand his law and testament. This is called the revealed will of God, or that by which he has made himself, and how he will be worshiped, known unto the children of men. Now, I, understanding these words thus, must, before I go further, make this distinction, to wit, that there is a difference to be put betwixt them that suffer for the breach and those that suffer for keeping of this law and testament; for though both of them may suffer by the will of God, yet they are not both concerned in this text. A malefactor that suffereth for his evil deeds the due punishment thereof, suffereth, as other texts declare, according to the will of God. But, I say, this text doth not concern itself with them; for both this text and this epistle is writ for the counsel and comfort of those that suffer for keeping the law and testament of God; that suffer for well-doing (1 Peter 3:13,14,17; 4:13,14).
The man then that is concerned in this advice is he that suffereth from the hands of men for keeping of the word of God; and this is he that has licence, leave, yea, a command to commit the keeping of his soul to God in well-doing, as unto a faithful Creator. We will a little enlarge upon this.
[What it is to suffer according to the will of God, or his law and testament.]
He that keepeth the word of God is such an one that has regard to both the matter and manner thereof. The matter is the truth, the doctrine contained therein; the manner is that comely, godly, humble, faithful way of doing it which becomes a man that has to do with the law and testament of God; and both these are contained in the text. For, first, here is the will of God to be done; and then, secondly, to be done according to his will. "Let them that suffer according to his will": which words, I say, take in both matter and manner of doing. So then, the man that here we have to do with, and to discourse of, is a man that, in the sense now given, suffereth. That which makes a martyr, is suffering for the word of God after a right manner; and that is, when he suffereth, not only for righteousness, but for righteousness' sake; not only for truth, but of love to truth; not only for God's word, but according to it, to wit, in that holy, humble, meek manner as the word of God requireth. A man may give his body to be burned for God's truth, and yet be none of God's martyrs (1 Cor 13:1-3). Yea, a man may suffer with a great deal of patience, and yet be none of God's martyrs (1 Peter 2:20). The one, because he wanteth that grace that should poise his heart, and make him right in the manner of doing; the other, because he wanteth that word of the Holy One that alone can make his cause good, as to matter. It is, therefore, matter and manner that makes the martyr; and it is this man that is intended in the text which is aforesaid described. So then, they that suffer for the law and testament of God in that holy and humble manner that the Word requires, they are they that, by this Word of God, are commanded to commit the keeping of their souls to God.
From this consideration, two things present themselves to our sight. 1. That a man may be a Christian, and suffer, and yet not suffer, in the sense last given, according to the will of God. 2. There have been, and may yet be a people in the world that have, and may suffer in the sense of the apostle here, according to the will of God.
[1. A Christian may suffer, but not in the sense of the apostle, according to the will of God.]
A few words to the first of these, namely, that a man may be a Christian, and suffer, and yet not suffer, in the sense of the apostle in the text, "according to the will of God." He may be a Christian and yet not suffer as a Christian. He may want the matter, or, he may want the manner, of suffering as a Christian.