²² Then I commanded the Levites ^(A)that they should purify themselves and come and guard the gates, to keep the Sabbath day holy. ^(B)Remember this also in my favour, O my God, and spare me according to the greatness of your steadfast love.

^30 (A)Thus I cleansed them from everything foreign, and I established the duties of the priests and Levites, each in his work;