Nehemiah saw that Israel was in a mess, so he left his comfortable home, came to Jerusalem and did something about the problem. But, as we read later in the bible, it wasn’t long before the Israelites did the same thing again.
The wall is complete and the enemies are afraid and disheartened and it seems like the end of the story. But it’s not, there is still opposition. It’s a helpful reminder that in life even when there’s breakthrough and wonderful things happening, there will still be challenges ahead and decisions we have to make.