The people gathered in sackcloth and ashes to confess their sins and repent. Then a decision had to be made.
So all these people now make this special promise to God. And they all ask for bad things to happen if they don’t keep their promise. All these people promise to follow the law of God. That law of God was given to us through Moses his servant. These people promise with an oath to carefully obey all the commands, rules, and teachings of our Lord God.
Nehemiah 10: 28 ERV

We figured about ten percent of the people could comfortably live there also. We wanted to be fair about who would live in Jerusalem, and who would live in a surrounding town.
Now the leaders of the Israelites moved into the city of Jerusalem. The rest of the people used lots to decide who else should move there with the leaders. They chose a tenth of the people to live in Jerusalem, the holy city. The rest of the people stayed in their own towns.
Nehemiah 11:1 ERV

It was amazing! All kinds of music and rejoicing to celebrate the completion of the wall.
So on that special day, the priests offered many sacrifices. Everyone was very happy because God had made them happy. Even the women and children were excited and happy. People far away could hear the happy sounds coming from Jerusalem.
Nehemiah 12: 23 ERV