Nehemiah 13:19-22

As the gates of Jerusalem were darkened by the shadows of the approaching Sabbath, I ordered the doors shut and not to be opened until the Sabbath was over. I placed some of my servants at the gates to make sure that nothing to be sold would get in on the Sabbath day. Traders and dealers in various goods camped outside the gates once or twice. But I took them to task. I said, “You have no business camping out here by the wall. If I find you here again, I’ll use force to drive you off.” And that did it; they didn’t come back on the Sabbath. Then I directed the Levites to ceremonially cleanse themselves and take over as guards at the gates to keep the sanctity of the Sabbath day.