John Gill's  Exposition of the Bible 

1 Kings 21:6

And he said unto her, Because I spake unto Naboth the Jezreelite, and said unto him, Give me thy vineyard for money; or else, if it please thee, I will give thee another vineyard for it: and he answered, I will not give thee my vineyard.

And he said, because I spake unto Naboth the Jezreelite, and said unto him, give me thy vineyard for money,.... Sell it him at his own price:

or else, if it please thee; if he liked it better:

I will give thee another vineyard for it; as good, or better; and he answered, I will not give thee my vineyard; he represents this answer as surly and ill natured, and as the effect of obstinacy, concealing the reason Naboth alleged for his denial.