Nehemiah 4:5

5 and do not cover over their iniquity, and their sin from before Thee let not be blotted out, for they have provoked to anger -- over-against those building.

Nehemiah 4:5 Meaning and Commentary

Nehemiah 4:5

And cover not their iniquity, and let not their sin be blotted
out from before thee
Let it not go unpunished, and even let it not be pardoned; which is spoken, not from a private spirit of revenge, but from a public spirit for the glory of God, and his justice; and not as a mere imprecation, but as a prophecy of what would be the case, in like manner as many of David's petitions in the Psalms; and for this there was a good foundation, since God had threatened the Moabites and Ammonites with utter destruction:

for they have provoked thee to anger before the builders;
by despising his people, and mocking at the work the Lord had called them to; and this they did publicly, and on purpose to discourage the workmen.

Nehemiah 4:5 In-Context

3 And Tobiah the Ammonite [is] by him and saith, `Also, that which they are building -- if a fox doth go up, then it hath broken down their stone wall.'
4 Hear, O our God, for we have been despised; and turn back their reproach on their own head, and give them for a spoil in a land of captivity;
5 and do not cover over their iniquity, and their sin from before Thee let not be blotted out, for they have provoked to anger -- over-against those building.
6 And we build the wall, and all the wall is joined -- unto its half, and the people have a heart to work.
7 And it cometh to pass, when Sanballat hath heard, and Tobiah, and the Arabians, and the Ammonites, and the Ashdodites, that lengthening hath gone up to the walls of Jerusalem, that the breeches have begun to be stopped, then it is very displeasing to them,
Young's Literal Translation is in the public domain.