Turn away from evil, and do good. Here the Psalmist commands the children of God to abstain from all evil, and to devote themselves to the work of doing good to their neighbors. This verse is generally quoted as if David here treated of the two parts of repentance. The first step in the work of repentance is, that the sinner forsake the vices to which he is addicted, and renounce his former manner of life; and the second, that he frame his behavior according to righteousness. But in this place we are more especially taught how we ought to deal with our neighbors. As it often happens, that the man who is not only liberal, but also prodigal towards some, or, at least, helps many by acts of kindness, wrongs others by defrauding and injuring them, David, with much propriety, begins by saying, that those who desire to have their life approved before God, ought to abstain from doing evil. On the other hand, since many think, that provided they have neither defrauded, nor wronged, nor injured any man, they have discharged the duty which God requires from them, he has added, with equal propriety, the other precept concerning doing good to our neighbors. It is not the will of God that his servants should be idle, but rather that they should aid one another, desiring each other's welfare and prosperity, and promoting it as far as in them lies. David next inculcates the duty of maintaining peace: Seek peace, and pursue it. Now we know that this is maintained by gentleness and forbearance. But as we have often to do with men of a fretful, or factious, or stubborn spirit, or with such as are always ready to stir up strife upon the slightest occasion; and as also many wicked persons irritate us; and as others by their own wickedness alienate, as much as in them lies, the minds of good men from them, and others industriously strive to find grounds of contention; he teaches us not merely that we ought to seek peace, but if at any time it shall seem to flee from us, he bids us use our every effort without ceasing in pursuing it. This, however, must be understood with some limitation. It will often happen, that when good and humble men have done every thing in their power to secure peace, so far from softening the hearts of the wicked, or inclining them to uprightness, they rather excite their malice. Their impiety, also, often constrains us to separate from them, and to avoid them; nay, when they defy God, by proclaiming, as it were, open war against him, it would be disloyalty and treason on our part not to oppose and resist them. But here David means only that in our own personal affairs we should be meek and condescending, and endeavor, as far as in us lies, to maintain peace, though its maintenance should prove to us a source of much trouble and inconvenience.

Depart from evil - From all evil; from vice and crime in every form.
And do good - Do good to all people, and in all the relations of life.
Seek peace - Strive to live in peace with all the world. Compare the notes at Romans 12:18.
And pursue it - Follow after it. Make it an object of desire, and put forth constant efforts to live in peace with all human beings. There can be no doubt that this is appropriate advice to one who wishes to lengthen out his days. We have only to remember how many are cut down by indulging in a quarrelsome, litigious, and contentious spirit - by seeking revenge - by quarrels, duels, wars, and strife - to see the wisdom of this counsel.

Depart from evil,.... This denotes that evil is near to men; it keeps close to them, and should be declined and shunned: and it regards all sorts of evil; evil men, and their evil company; evil things, evil words and works, and all appearance of evil; and the fear of the Lord shows itself in an hatred of it, and a departure from it, Proverbs 8:13;
and do good; not only acts of beneficence to all in necessitous circumstances, but every good work; whatever the word of God directs, or suggests should be done; and which should be done from right principles of faith and love, and to right ends, the glory of God, and the good of his interest; and Christ should be looked and applied unto for grace and strength to perform; all which are evidences of the true fear of God;
seek peace, and pursue it; in the world, and with all men, as much as possibly can be; in neighbourhoods, cities, and states, and in the churches of Christ, and with the saints, as well as with God through Christ; and which in every sense is to be pursued after with eagerness, and to be endeavoured for with diligence; see Romans 12:18.

Depart - From all sin. Do good - Be ready to perform all good offices to all men. Seek - Study by all means possible to live peaceable with all men. Pursue it - Do not only embrace it gladly when it is offered, but follow hard after it, when it seems to flee away from thee.