71 Now it happened, when the wall was built, and I had set up the doors, and the porters and the singers and the Levites were appointed, 2 that I put my brother Hanani, and Hananiah the governor of the castle, in charge of Jerusalem; for he was a faithful man, and feared God above many. 3 I said to them, Don’t let the gates of Jerusalem be opened until the sun be hot; and while they stand on guard, let them shut the doors, and you bar them: and appoint watches of the inhabitants of Jerusalem, everyone in his watch, and everyone to be over against his house. 4 Now the city was wide and large; but the people were few therein, and the houses were not built.
Matthew Henry's Commentary on Nehemiah 7:1-4
Commentary on Nehemiah 7:1-4
(Read Nehemiah 7:1-4)
Nehemiah, having finished the wall, returned to the Persian court, and came to Jerusalem again with a new commission. The public safety depends on every one's care to guard himself and his family against sin.