Law of kindness - The words which come from the lips of the true wife are as a law giving guidance and instruction to those that hear them; but the law is not proclaimed in its sterner aspects, but as one in which "mercy tempers justice," and love, the fulfilling of the law, is seen to be the source from which it springs.

Strength and honor are her clothing -
16. All the articles manufactured by herself or under her care have a double perfection:
1. They are strong.
2. They are elegant;
Strength and honor are her clothing; and on account of this she shall rejoice in time to come; she shall never have occasion to blush for any thing she has made, for any thing she or hers have worn, or for any thing she has sold. Besides, she has so conducted herself that she has reason to expect that the hand of the Lord shall be still with her, and shall keep her from evil that it may not grieve her.
She openeth her mouth with wisdom -
17. He comes now to the moral management of her family.
1. She is wise and intelligent; she has not neglected the cultivation of her mind.
2. She is amiable in her carriage, full of good nature, well tempered, and conciliating in her manners and address.
In her tongue is the law of kindness - This is the most distinguishing excellence of this woman. There are very few of those who are called managing women who are not lords over their husbands, tyrants over their servants, and insolent among their neighbors. But this woman, with all her eminence and excellence, was of a meek and quiet spirit. Blessed woman!

She openeth her mouth with wisdom; and on her tongue [is] the (n) law of kindness.
(n) Her tongue is a book by which one might learn many good things: for she delights to talk of the word of God.

She openeth her mouth with wisdom,.... When she opens her mouth, for it is not always open, she expresses herself in a discreet and prudent manner; as well as speaks of things not foolish and trifling, but of moment and importance, and of usefulness to others: or "concerning wisdom" (a); the church and people of Christ talk of the wisdom of God in the works of creation, providence, and redemption; of Christ, the Wisdom of God, and as made so to them; of the Gospel, the wisdom of God in a mystery, the hidden wisdom; and of wisdom in the hidden part, or the truth of grace in their souls; of their gracious experiences; nor will they suffer any foolish, filthy, and corrupt communication to proceed out of their mouths, but speak the pure language of Canaan; what is for the use of edifying, and being taken out of the Scriptures is profitable for instruction in righteousness; see Psalm 37:30;
and in her tongue is the law of kindness; or "the law of love" (b), grace and mercy; which is the law of Christ, Galatians 6:2; speaking kindly and tenderly to everyone, exhorting to acts of mercy and kindness, and doing them herself: or "the doctrine of grace is in her tongue" (c); the Gospel, which is called the Gospel of the grace of God, and the grace of God itself; it is the doctrine of the grace and love of God the Father towards men in Christ, as it appears in their election in him and redemption by him; of the grace of Christ in his incarnation, sufferings, and death; and of the grace of the Spirit in regeneration, conversion, and sanctification; and which contains various doctrines of grace, as of justification, pardon of sin, and effectual calling; and of salvation itself, which is all of grace: and this doctrine of grace, in the several branches of it, the church, and all gracious souls, cannot forbear speaking of; it is often in their mouths, it dwells upon their tongues; and careful are they in other respects that their speech be seasoned with grace, and be such that ministers grace to the hearers, Ephesians 4:29.
(a) "de sapientia", Mercerus. (b) "lex misericordiae", Montanus. (c) "Instructio gratiae", Gejerus; "lex, vel doctrina gratiae", Cocceius, so the Targum; "doctrina benigniatis", Junius & Tremellius, Piscator.

Her conversation is wise and gentle.

The next verse presents one of the most beautiful features in the portrait:
26 פ She openeth her mouth with wisdom,
And amiable instruction is on her tongue.
The ב of בּחכמה is, as also at Psalm 49:5; Psalm 78:2, that of means: when she speaks, then it is wisdom pressing itself from her heart outward, by means of which she breaks the silence of her mouth. With על, in the expression 26b, elsewhere תּהת interchanges: under the tongue, Psalm 10:7, one has that which is ready to be spoken out, and on the tongue, Psalm 15:3, that which is in the act of being spoken out. תּורת־חסד is a genitive connection after the manner of tôrath אמת, Malachi 2:6. The gen. is not, as at Leviticus 6:2, in tôrath העלה, the gen. of the object (thus e.g., Fleischer's institutio ad humanitatem), but the gen. of property, but not so that חסד denotes grace (Symmachus, νόμος ἐπίχαρις; Theodotion, νόμος χάριτος), because for this meaning there is no example except Isaiah 40:6; and since חסד in the O.T. is the very same as in the N.T., love, which is the fulfilling of the law, Hosea 6:6, cf. 1-Kings 20:31,
(Note: Immanuel remarks that Tôrath חסד probably refers to the Tôra, and שׁכוהל חסד, i.e., which is wholly love, which goes forth in love, to the Gesetz = statute.)
it is supposed that the poet, since he writes תורת חסד, and not תורת חן, means to designate by חסד this property without which her love for her husband, her industry, her high sentiment, would be no virtues, viz., unselfish, sympathizing, gentle love. Instruction which bears on itself the stamp of such amiability, and is also gracious, i.e., awakening love, because going forth from love (according to which Luther, translating holdselige Lere = pleasing instructions, thus understands it) - such instruction she carries, as house-mother (Proverbs 1:8), in her mouth. Accordingly the lxx translate (vid., Lagarde regarding the mistakes of this text before us) θεσμοὶ ἐλεημοσύνης, and Jerome lex clementiae. חסד is related to אהבה as grace to love; it denotes love showing itself in kindness and gracefulness, particularly condescending love, proceeding from a compassionate sympathy with the sufferings and wants of men. Such graceful instruction she communicates now to this and now to that member of her household, for nothing that goes on in her house escapes her observation.

Openeth her mouth - She is neither sullenly silent, nor full of impertinent talk, but speaks discreetly and piously, as occasion offers. In her tongue - Her speeches are guided by wisdom and grace, and not by inordinate passions. And this practice is called a law in her tongue, because it is constant and customary, and proceeds from an inward and powerful principle of true wisdom.