So the wall was finished on the twenty-fifth day of Elul, in fifty-two days. And it happened, when all our enemies heard of it, and all the nations around us saw these things, that they were very disheartened in their own eyes; for they perceived that this work was done by our God. Nehemiah 6:15-16

The wall was finished but the work was just beginning!

There is always work to do for the kingdom of God. When you complete one thing, another presents itself.
If your church completes the building program then it’s time to fill up the building by inviting and compelling people to come!
If you win a soul in the house across the road, then it’s time to move to the house next door.
Even if every person on the face of the earth accepted Jesus as Savior today, the work would continue in encouraging everyone to stay strong in the Lord and avoid sinful behavior.
However, every person on the face of the earth does not know Jesus as Savior so the work continues.