A wicked messenger falleth {h} into mischief: but a faithful ambassador is health.

(h) Brings many inconveniences both to himself and to others.

Wesley's Notes

13:17 A messenger - Who is unfaithful in the execution of that which is committed to his charge. Is health - Procures benefit, as to his master, so to himself.

King James Translators' Notes

a faithful...: Heb. an ambassador of faithfulness

Jamieson-Fausset-Brown Bible Commentary

17. A wicked-or, "unfaithful"

messenger falleth into mischief-or, "by mischief," or "evil," and so his errand fails. Contrasted is the character of the faithful, whose faithfulness benefits others.

Matthew Henry's Concise Commentary

13:14. The rule by which the wise regulate their conduct, is a fountain yielding life and happiness. 15. The way of sinners is hard upon others, and hard to the sinner himself. The service of sin is slavery; the road to hell is strewed with the thorns and thistles that followed the curse. 16. It is folly to talk of things of which we know nothing, and to undertake what we are no way fit for. 17. Those that are wicked, and false to Christ and to the souls of men, do mischief, and fall into mischief; but those that are faithful, find sound words healing to others and to themselves. 18. He that scorns to be taught, will certainly be brought down. 19. There are in man strong desires after happiness; but never let those expect any thing truly sweet to their souls, who will not be persuaded to leave their sins. 20. Multitudes are brought to ruin by bad company. And all that make themselves wicked will be destroyed. 21. When God pursues sinners he is sure to overtake them; and he will reward the righteous. 22. The servant of God who is not anxious about riches, takes the best method of providing for his children. 23. The poor, yet industrious, thrive, though in a homely manner, while those who have great riches are often brought to poverty for want of judgment. 24. He acts as if he hated his child, who, by false indulgence, permits sinful habits to gather strength, which will bring sorrow here, and misery hereafter. 25. It is the misery of the wicked, that even their sensual appetites are always craving. The righteous feeds on the word and ordinances, to the satisfying of his soul with the promises of the gospel, and the Lord Jesus Christ, who is the Bread of life.

Matthew Henry's Whole Bible Commentary

Verse 17

Here we have, 1. The ill consequences of betraying a trust. A wicked messenger, who, being sent to negotiate any business, is false to him that employed him, divulges his counsels, and so defeats his designs, cannot expect to prosper, but will certainly fall into some mischief or other, will be discovered and punished, since nothing is more hateful to God and man than the treachery of those that have a confidence reposed in them. 2. The happy effects of fidelity: An ambassador who faithfully discharges his trust, and serves the interests of those who employ him, is health; he is health to those by whom and for whom he is employed, heals differences that are between them, and preserves a good understanding; he is health to himself, for he secures his own interest. This is applicable to ministers, Christ's messengers and ambassadors; those that are wicked and false to Christ and the souls of men do mischief and fall into mischief, but those that are faithful will find sound words to be healing words to others and themselves.