131 Also on that same day there was a reading from the Book of Moses in the hearing of the people. It was found written there that no Ammonite or Moabite was permitted to enter the congregation of God, 2 because they hadn't welcomed the People of Israel with food and drink; they even hired Balaam to work against them by cursing them, but our God turned the curse into a blessing. 3 When they heard the reading of The Revelation, they excluded all foreigners from Israel.
Matthew Henry's Commentary on Nehemiah 13:1-3
Commentary on Nehemiah 13:1-9
(Read Nehemiah 13:1-9)
Israel was a peculiar people, and not to mingle with the nations. See the benefit of publicly reading the word of God; when it is duly attended to, it discovers to us sin and duty, good and evil, and shows wherein we have erred. We profit, when we are thus wrought upon to separate from evil. Those that would drive sin out of their hearts, the living temples, must throw out its household stuff, and all the provision made for it; and take away all the things that are the food and fuel of lust; this is really to mortify it. When sin is cast out of the heart by repentance, let the blood of Christ be applied to it by faith, then let it be furnished with the graces of God's Spirit, for every good work.