What does Nehemiah 10:28 mean?

Everyone else - the rest of the people, the priests, the Levites, the gatekeepers, the singers, the temple servants, and anyone who had separated themselves from the surrounding nations to follow God's law, along with their wives, sons, and daughters who were old enough to understand - Nehemiah 10:28 - Modern Text Bible

(This verse makes it clear that the whole community, not just the leaders, was involved in this commitment, including families and anyone who chose to follow God's ways.)