Nehemiah 13:19-22

So it was, at the gates of Jerusalem, as it began to be dark before the Sabbath, that I commanded the gates to be shut, and charged that they must not be opened till after the Sabbath. Then I posted some of my servants at the gates, so that no burdens would be brought in on the Sabbath day. Now the merchants and sellers of all kinds of wares lodged outside Jerusalem once or twice. Then I warned them, and said to them, “Why do you spend the night around the wall? If you do so again, I will lay hands on you!” From that time on they came no more on the Sabbath. And I commanded the Levites that they should cleanse themselves, and that they should go and guard the gates, to sanctify the Sabbath day. Remember me, O my God, concerning this also, and spare me according to the greatness of Your mercy!