17 for many [are] in the assembly who have not sanctified themselves, and the Levites [are] over the slaughtering of the passover-offerings for every one not clean, to sanctify [him] to Jehovah:
17
Since many in the crowd had not consecrated themselves, the Levites had to kill the Passover lambs for all those who were not ceremonially clean and could not consecrate their lambs to the LORD.
Young's Literal Translation is in the public domain.