John Gill Commentary Nehemiah 5:9

"Also I said, The thing that ye do is not good: ought ye not to walk in the fear of our God, because of the reproach of the nations our enemies?" — Nehemiah 5:9 (ASV)

Also I said, it is not good that you do
The meaning is, that it was very bad; it is a "meiosis", by which more is intended than is expressed:

ought you not to walk in the fear of our God ;
in reverence of him and his law, and according to that:

because of the reproach of the Heathen our enemies ?
whose mouths will be open to reproach the true religion, and the good ways of God; and say, these are the men that pretend to fear God, and serve him, and yet break his law, and use their brethren ill, see (Romans 2:24) .