(10) Proving what is acceptable unto the Lord.--So in Romans 12:2, the "proving what is the good and acceptable and perfect will of God," is the fruit of transformation "in the renewing of the mind." "To prove" is to try in each case, by the full light of God, what is accordant to His will; it is a work partly of thought, partly of practical experience; and it always implies a searching examination of heart and action by the touchstone of God's word.

Verse 10. - Proving what is well-pleasing to the Lord. A general rule applicable to the whole walk. To prove is to ascertain by test and experiment. Our whole walk should be directed to finding out what things are pleasing to Christ, rejecting at once everything that is not so, and clinging to all that is. We are not to follow the tradition of our people, and not to take a vague view of duty; we are to prove the matter, to put it to the test. For the supreme practical rule of the Christian's life must be to please Christ.

5:3-14 Filthy lusts must be rooted out. These sins must be dreaded and detested. Here are not only cautions against gross acts of sin, but against what some may make light of. But these things are so far from being profitable. that they pollute and poison the hearers. Our cheerfulness should show itself as becomes Christians, in what may tend to God's glory. A covetous man makes a god of his money; places that hope, confidence, and delight, in worldly good, which should be in God only. Those who allow themselves, either in the lusts of the flesh or the love of the world, belong not to the kingdom of grace, nor shall they come to the kingdom of glory. When the vilest transgressors repent and believe the gospel, they become children of obedience, from whom God's wrath is turned away. Dare we make light of that which brings down the wrath of God? Sinners, like men in the dark, are going they know not whither, and doing they know not what. But the grace of God wrought a mighty change in the souls of many. Walk as children of light, as having knowledge and holiness. These works of darkness are unfruitful, whatever profit they may boast; for they end in the destruction of the impenitent sinner. There are many ways of abetting, or taking part in the sins of others; by commendation, counsel, consent, or concealment. And if we share with others in their sins, we must expect to share in their plagues. If we do not reprove the sins of others, we have fellowship with them. A good man will be ashamed to speak of what many wicked men are not ashamed to do. We must have not only a sight and a knowledge that sin is sin, and in some measure shameful, but see it as a breach of God's holy law. After the example of prophets and apostles, we should call on those asleep and dead in sin, to awake and arise, that Christ may give them light.Proving what is acceptable unto the Lord. There are many things that are acceptable to God, as the person of Christ, his righteousness, sacrifice, sufferings, death, and mediation; the persons of his people, their services, sufferings, sacrifices of prayer, and praise to him, and of bounty and liberality to the poor; their graces, and the exercise of them; and the actions of their lives and conversations, when they are becoming the Gospel, are according to the will of God, and are done in faith, and are directed to his glory: and these things which are acceptable to God, as all the truths of the Gospel, and duties of religion are, should be proved, or tried by men; and in order to the trial of spiritual things, it is necessary that the mind be renewed, the understanding be enlightened, the spiritual senses be in exercise, and all be under the influence and directions of the Spirit of God: and the trial is to be made, not according to human reason, which is corrupt and fallible; and besides, there are some things in revelation above it; but according to the Scriptures, which are the word of God, and the rule of faith and practice; and whither the prophets, Christ, and his apostles, always sent men for the trial of divine things; and things being here tried, and found to be right, should be approved of, valued, and esteemed, cleaved to and held fast.