Nehemiah 7:3
and I said unto them, Do not let the gates of Jerusalem be opened until the sun is hot and even with the guards present, let them shut the doors and bar them. And appoint guards of the inhabitants of Jerusalem, each one in his watch and each one to be in front of his house.
Nehemiah 3:23
After them Benjamin and Hashub restored over against their house. After them Azariah, the son of Maaseiah, the son of Ananiah, restored by his house.
Nehemiah 3:28-30
From the horse gate the priests restored, each one over against his house.
Nehemiah 13:19
And it came to pass, that when shadow came to the gates of Jerusalem before the sabbath, I commanded that the gates should be shut and charged that they should not be opened until after the sabbath; and I set some of my servants at the gates, that no burden be brought in on the sabbath day.
Psalm 127:1
Unless the LORD builds the house, they labour in vain that build it; unless the LORD keeps the city, the watchmen watch in vain.
Matthew 10:16
Behold, I send you forth as sheep in the midst of wolves; be ye therefore prudent as serpents and innocent as doves.