The merciful man {k} doeth good to his own soul: but he that is cruel troubleth his own flesh.

(k) Rewards both himself and others.

Jamieson-Fausset-Brown Bible Commentary

17. merciful-kind to others; opposed to cruel. Such benefit themselves by doing good to others (compare Pr 24:5), while the cruel injure themselves as well as others.

flesh-that is, his body, by penuriousness (Col 2:23).

Matthew Henry's Concise Commentary

11:1 However men may make light of giving short weight or measure, and however common such crimes may be, they are an abomination to the Lord. 2. Considering how safe, and quiet, and easy the humble are, we see that with the lowly is wisdom. 3. An honest man's principles are fixed, therefore his way is plain. 4. Riches will stand men in no stead in the day of death. 5,6. The ways of wickedness are dangerous. And sin will be its own punishment. 7. When a godly man dies, all his fears vanish; but when a wicked man dies, his hopes vanish. 8. The righteous are often wonderfully kept from going into dangerous situations, and the ungodly go in their stead. 9. Hypocrites delude men into error and sin by artful objections against the truths of God's word. 10,11. Nations prosper when wicked men are cast down. 12. A man of understanding does not judge of others by their success. 13. A faithful man will not disclose what he is trusted with, unless the honour of God and the real good of society require it. 14. We shall often find it to our advantage to advise with others. 15. The welfare of our families, our own peace, and our ability to pay just debts, must not be brought into danger. But here especially let us consider the grace of our Lord Jesus Christ in becoming Surety even for enemies. 16. A pious and discreet woman will keep esteem and respect, as strong men keep possession of wealth. 17. A cruel, froward, ill-natured man, is vexatious to those that are, and should be to him as his own flesh, and punishes himself. 18. He that makes it his business to do good, shall have a reward, as sure to him as eternal truth can make it. 19. True holiness is true happiness. The more violent a man is in sinful pursuits, the more he hastens his own destruction. 20. Nothing is more hateful to God, than hypocrisy and double dealing, which are here signified. God delights in such as aim and act with uprightness. 21. Joining together in sin shall not protect the sinners. 22. Beauty is abused by those who have not discretion or modesty with it. This is true of all bodily endowments. 23. The wicked desire mischief to others, but it shall return upon themselves. 24. A man may grow poor by not paying just debts, not relieving the poor, not allowing needful expenses. Let men be ever so saving of what they have, if God appoints, it comes to nothing. 25. Both in temporal and spiritual things, God commonly deals with his people according to the measure by which they deal with their brethren. 26. We must not hoard up the gifts of God's bounty, merely for our own advantage. 27. Seeking mischief is here set against seeking good; for those that are not doing good are doing hurt, even to themselves.

Matthew Henry's Whole Bible Commentary

Verse 17

It is a common principle, Every one for himself. Proximus egomet mihi-None so near to me as myself. Now, if this be rightly understood, it will be a reason for the cherishing of gracious dispositions in ourselves and the crucifying of corrupt ones. We are friends or enemies to ourselves, even in respect of present comfort, according as we are or are not governed by religious principles. 1. A merciful, tender, good humoured man, does good to his own soul, makes and keeps himself easy. He has the pleasure of doing his duty, and contributing to the comfort of those that are to him as his own soul; for we are members one of another. He that waters others with his temporal good things shall find that God will water him with his spiritual blessings, which will do the best good to his own soul. See Isa. 58:7, etc. If thou hide not thy eyes from thy own flesh, but do good to others, as to thyself, if thou do good with thy own soul and draw that out to the hungry, thou wilt do good to thy own soul; for the Lord shall satisfy thy soul and make fat thy bones. Some make it part of the character of a merciful man, that he will make much of himself; that disposition which inclines him to be charitable to others will oblige him to allow himself also that which is convenient and to enjoy the good of all his labour. We may by the soul understand the inward man, as the apostle calls it, and then it teaches us that the first and great act of mercy is to provide well for our own souls the necessary supports of the spiritual life. 2. A cruel, froward, ill-natured man, troubles his own flesh, and so his sin becomes his punishment; he starves and dies for want of what he has, because he has not a heart to use it either for the good of others of for his own. He is vexatious to his nearest relations, that are, and should be, to him as his own flesh, Eph. 5:29. Envy, and malice, and greediness of the world, are the rottenness of the bones and the consumption of the flesh.