The excellent wife is a doer, which we have seen throughout this entire portrait. But we learn in verse 26 that she is also a teacher - and one whose words are a blessing to all those who hear them. Let's take a look at the two pictures that are painted for us, describing this aspect of the excellent wife.
First we see that she speaks wisdom. The picture that is painted for us is a woman who when she sees the need of breaking silence with her mouth - speaks and wisdom pours from her. The phrase "opens her mouth," is a Hebraism meaning what is under her tongue or ready to proceed from her mouth. It has the idea that as soon as her mouth opens to speak - wisdom pours forth from it. The Jewish scholars believed that this woman's heart was so filled with this wisdom from God that the moment she opened her mouth it naturally flowed from it. This is the kind of woman you want to be around when she did speak. She was the female embodiment of E.F. Hutton - who when she speaks - you should listen!
The second thing we learn about her is that "the teaching of kindness is on her tongue." There are two ways of reading this - and honestly I think either is correct. The first way would be to say that she teaches of kindness to others. The word for kindness here is the Hebrew word "chesed." This word is the one that is closest to the New Testament concept of agape love that we have in the Old Testament. The word meant both goodness and kindness - and referred to God's covenant love. She taught of God's great covenant love. She taught of a God who loved His people, showing them His kindness and His goodness to them. But the second way of seeing this is that she was loving as she taught. The reason I feel that either is applicable is that they compliment each other so well. One who teaches of God's love would, of course, be one who showed it as well even as she taught.
The excellent wife is not just a worker - but a lover - and one who loves as God Himself does. She speaks wisdom and teaches of love. These are two wonderful aspects of God that every family member and especially the children need to learn. That is why the excellent wife is so ready to speak of such things whenever she opens her mouth. She is a source of blessing therefore not only in all that she does for this family - but also in all she speaks and teaches as well.