Bible Verses About Form in Religious Serv Ice

For because ye did it not at the first, the LORD our God made a breach upon us, for that we sought him not after the due order.

So the priests and the Levites sanctified themselves to bring up the ark of the LORD God of Israel.

But the priests were too few, so that they could not flay all the burnt offerings: wherefore their brethren the Levites did help them, till the work was ended, and until the other priests had sanctified themselves: for the Levites were more upright in heart to sanctify themselves than the priests.