According to the author of the book of Nehemiah, this verse shows that two men named Sanballat and Tobiah were very upset because they didn't want anyone to help the people of Israel. Christians understand this to mean that sometimes people may not like it when others try to do good things, but it's important to help others anyway.
Nehemiah 2:10: When Sanballat the Horonite, and Tobiah the servant, the Ammonite, heard [of it], it grieved them exceedingly that there was come a man to seek the welfare of the children of Israel.
This verse states that when a man's ways please the LORD, he makes even his enemies to be at peace with him, while in Nehemiah 2:10, the adversaries were displeased with Nehemiah's work for God.
Proverbs 16:7: When a man's ways please the LORD, he maketh even his enemies to be at peace with him.