Nehemiah 13:19-22

19When evening darkness began to fall on the gates of Jerusalem before Yom Shabbat, I commanded the doors to be shut. I further commanded that they should not be opened till after Yom Shabbat. I appointed some of my attendants over the gates so that no burden could enter during Shabbat.

20Once or twice the traders and those selling all kinds of merchandise camped outside Jerusalem.

21But I warned them and said to them, “Why are you camping next to the wall? If you do so again, I will lay hands on you.” From that time they no longer came on the Shabbat.

22Then I commanded the Levites to purify themselves, and to come and guard the gates in order to sanctify Yom Shabbat. Remember this also on my behalf, O my God, and have compassion on me according to the greatness of your lovingkindness.