I hereby decree that any volunteers among the Israelites in my kingdom, including the priests and Levites, may go up with you to Jerusalem.
KJV
I make a decree, that all they of the people of Israel, and [of] his priests and Levites, in my realm, which are minded of their own freewill to go up to Jerusalem, go with thee.
ASV
I make a decree, that all they of the people of Israel, and their priests and the Levites, in my realm, that are minded of their own free will to go to Jerusalem, go with thee.