John Wesley on Nehemiah 12:47

Sanctified - They set apart the first - fruits and tithes from their own share, and devoted them to the use of the Levites. And so did the Levites by the tithe of the tithes. Thus they all conscientiously paid their dues, and did not profane those things which God had sanctified, nor take them into their own common use. When what is contributed for the support of religion, is given with an eye to God, it is sanctified, and will cause the blessing to rest upon the house, and all that is therein.