John Trapp on Nehemiah 10:37

Verſe 37. And that we ſhould bring the firſt-fruits of our dough] As oft as they baked, they gave a Cake unto the Prieſts; where they dwelled, throughout the Tribes: for they were diſperſed all abroad the land for inſtruction of the people, and exhortation to obedience to the Law of God. See Num. 15.20, 21.

And the tythes of our ground unto the Levites] And the tythes were paid to the Levites, not to the Prieſts: and out of them, the Levites paid a tenth to the Prieſts.

In all the Cities of our tillage] No places were tyth-free.