'Buyer' in the Bible

It is naught, it is naught, saith the buyer: but when he is gone his way, then he boasteth.

And it shall be, as with the people, so with the priest; as with the servant, so with his master; as with the maid, so with her mistress; as with the buyer, so with the seller; as with the lender, so with the borrower; as with the taker of usury, so with the giver of usury to him.

The time is come, the day draweth near: let not the buyer rejoice, nor the seller mourn: for wrath is upon all the multitude thereof.