Charles Ellicott Commentary Isaiah 60:17

"For brass I will bring gold, and for iron I will bring silver, and for wood brass, and for stones iron. I will also make thy officers peace, and thine exactors righteousness." — Isaiah 60:17 (ASV)

For brass I will bring gold ... The material wealth of the days of Solomon (1 Kings 10:21–27) furnishes another element in the picture of the ideal city, but with this striking difference: that there the “officers” and “exactors” of the king had been instruments of oppression (1 Kings 12:4), while now they were to be the very embodiment of righteousness, and, in the widest sense, of “peace,” and, therefore, of prosperity.