2 Chronicles 2:15

Now therefore, the wheat, and the barley, the oil, and the
wine, which my lord hath spoken of
In his letter to him, ( 2 Chronicles 2:10 ) as for the phrase "my lord", which some think is used, because Hiram was tributary to Solomon, it may only be a respectful way of speaking:

let him send unto his servants;
Hiram accepted thereof as a proper reward for the work of his servants.