See here 1. What arts men use to get a good bargain and to buy cheap. They not only cheapen carelessly, as if they had no need, no mind for the commodity, when perhaps they cannot go without it (there may be prudence in that), but they vilify and run down that which yet they know to be of value; they cry, "It is naught, it is naught; it has this and the other fault, or perhaps may have; it is not good of the sort; and it is too dear; we can have better and cheaper elsewhere, or have bought better and cheaper." This is the common way of dealing; and after all, it may be, they know the contrary of what they affirm; but the buyer, who may think he has no other way of being even with the seller, does as extravagantly commend his goods and justify the price he sets on them, and so there is a fault on both sides; whereas the bargain would be made every jot as well if both buyer and seller would be modest and speak as they think. 2. What pride and pleasure men take in a good bargain when they have got it, though therein they contradict themselves, and own they dissembled when they were driving the bargain. When the buyer has beaten down the seller, who was content to lower his price rather than lose a customer (as many poor tradesmen are forced to do - small profit is better than none), then he goes his way, and boasts what excellent goods he has got at his own price, and takes it as an affront and a reflection upon his judgment if any body disparages his bargain. Perhaps he knew the worth of the good better than the seller himself did and knows how to get a great deal by them. See how apt men are to be pleased with their gettings and proud of their tricks; whereas a fraud and a lie are what a man ought to be ashamed of, though he have gained ever so much by them.

It is naught, it is naught, saith the buyer,.... When he comes to the shop of the seller, or to market to buy goods, he undervalues them, says they are not so good as they should be, nor so cheap as he can buy them at;

but when he is gone his way, then he boasteth; after he has brought the seller to as low a price as he can, and has bought the goods, and gone away with them, and got home among his friends; then he boasts what a bargain he has bought, how good the commodity is, how he has been too many for the seller, and has outwitted him; and so glories in his frauds and tricks, and rejoices in his boasting, and all such rejoicing is evil, Jam 4:16. Jarchi applies this to a man that is a hard student in the law, and through much difficulty gets the knowledge of it, when he is ready to pronounce himself unhappy; but when he is got full fraught with wisdom, then he rejoices at it, and glories in it.

when . . . his way--implying that he goes about boasting of his bargains.