4 occurrences across the corpus

King James Version

Proverbs 20:14

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

Isaiah 24:2

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.

Ezekiel 7:12

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.

KJV Apocrypha (Catholic Deuterocanon)

Sirach (Ecclesiasticus) 37:11

Neither consult with a woman touching her of whom she is jealous; neither with a coward in matters of war; nor with a merchant concerning exchange; nor with a buyer of selling; nor with an envious man of thankfulness; nor with an unmerciful man touching kindness; nor with the slothful for any work; nor with an hireling for a year of finishing work; nor with an idle servant of much business: hearken not unto these in any matter of counsel.