The Jerusalem City Wall Bible scriptures located in Nehemiah 6:15-19 explains directly from God's Word the Jerusalem City Wall topic.
So the wall was finished in the twenty and fifth day of the month Elul, in fifty and two days.
And it came to pass, that when all our enemies heard thereof, and all the heathen that were about us saw these things, they were much cast down in their own eyes: for they perceived that this work was wrought of our God.
Moreover in those days the nobles of Judah sent many letters unto Tobiah, and the letters of Tobiah came unto them.
For there were many in Judah sworn unto him, because he was the son in law of Shechaniah the son of Arah; and his son Johanan had taken the daughter of Meshullam the son of Berechiah.
Also they reported his good deeds before me, and uttered my words to him. And Tobiah sent letters to put me in fear.