What is the version of the following sentence with correct punctuation?

Then the priests the sons of Levi are to come near for they have been marked out by the Lord your God to be his servants and to give blessings in the name of the Lord and by their decision every argument and every blow is to be judged
Then the priests, the sons of Levi, are to come near; for they have been marked out by the Lord your God to be his servants and to give blessings in the name of the Lord; and by their decision every argument and every blow is to be judged: