Colossians 4:5, 6

Walk in wisdom toward them that are without, redeeming the time. Let your speech be always with grace, seasoned with salt, that you may know how you ought to answer each one.

What Christ said to His disciples, that does Paul also now advise. And what did Christ say? Behold, I send you forth as sheep in the midst of wolves: be ye therefore wise as serpents, and harmless as doves. That is, be upon your guard, giving them no handle against you. For therefore it is added, towards them that are without, in order that we may know that against our own members we have no need of so much caution as against those without. For where brethren are, there are both many allowances and kindnesses. There is indeed need of caution even here; but much more without, for it is not the same to be among enemies and foes, and among friends.

Then because he had alarmed them, see how again he encourages them; Redeeming, he says, the time: that is, the present time is short. Now this he said, not wishing them to be crafty, nor hypocrites, (for this is not a part of wisdom, but of senselessness,) but what? In matters wherein they harm you not, he means, give them no handle; as he says also, when writing to the Romans, Render to all their dues: tribute to whom tribute is due, custom to whom custom, honor to whom honor. On account of the Preaching alone have thou war, he says, let this war have none other origin. For though they were to become our foes for other causes besides, yet neither shall we have a reward, and they will become worse, and will seem to have just complaints against us. For instance, if we pay not the tribute, if we render not the honors that are due, if we be not lowly. Do you see not Paul, how submissive he is, where he was not likely to harm the Preaching. For hear him saying to Agrippa, I think myself happy, because I shall answer for myself this day before you, especially because I know you to be expert in all customs and questions which are among the Jews. But had he thought it his duty to insult the ruler, he would have spoiled everything. And hear too those of blessed Peter’s company, how gently they answer the Jews, saying, we must obey God rather than men. And yet men who had renounced their own lives, might both have insulted, and have done anything whatever; but for this object they had renounced their lives, not that they might win vainglory, (for that way had been vainglorious,) but that they might preach and speak all things with boldness. That other course marks want of moderation.

Let your speech be always with grace, seasoned with salt; that is, that this graciousness may not lapse into indifferentism. For it is possible to be simply agreeable, it is possible also to be so with due seemliness. That ye may know how ye ought to answer each one. So that one ought not to discourse alike to all, Greeks, I mean, and Brethren. By no means, for this were the very extreme of senselessness.

Ver. 7. All my affairs shall Tychicus make known unto you, the beloved brother and faithful minister and fellow-servant in the Lord.

Admirable! How great is the wisdom of Paul! Observe, he does not put everything into his Epistles, but only things necessary and urgent. In the first place, being desirous of not drawing them out to a length; and secondly, to make his messenger more respected, by his having also somewhat to relate; thirdly, showing his own affection towards him; for he would not else have entrusted these communications to him. Then, there were things which ought not to be declared in writing. The beloved brother, he says. If beloved, he knew all, and he concealed nothing from him. And faithful minister and fellow-servant in the Lord. If faithful, he will speak no falsehood; if a fellow-servant, he has shared his trials, so that he has brought together from all sides the grounds of trustworthiness.

Ver. 8. Whom I have sent unto you for this very purpose.

Here he shows his great love, seeing that for this purpose he sent him, and this was the cause of his journey; and so when writing to the Thessalonians, he said, Wherefore when we could no longer forbear, we thought it good to be left behind at Athens alone, and sent Timothy our brother. And to the Ephesians he sends this very same person, and for the very same cause, That he might know your estate, and comfort your hearts. See what he says, not that you might know my estate, but that I might know yours. So in no place does he mention what is his own. He shows that they were in trials too, by the expression, comfort your hearts.

Ver. 9. With Onesimus, the beloved and faithful brother, who is one of you. They shall make known unto you all things that are done here.

Onesimus is the one about whom, writing to Philemon, he said, Whom I would fain have kept with me, that in your behalf he might minister unto me in the bonds of the Gospel: but without your mind I would do nothing. And he adds too the praise of their city, that they might not only not be ashamed, but even pride themselves on him. Who is one of you, he says. They shall make known unto you all things that are done here.