Ezekiel 44:30

“The best of all the firstfruits and of every contribution from all your offerings will belong to the priests. You are to give your first batch of dough to the priest, so that a blessing may rest upon your homes.”

“And the first of all the firstfruits of all things, and every oblation of all, of every sort of your oblations, shall be the priest’s: ye shall also give unto the priest the first of your dough, that he may cause the blessing to rest in thine house.”

“And the first of all the first-fruits of every thing, and every oblation of everything, of all your oblations, shall be for the priest: ye shall also give unto the priests the first of your dough, to cause a blessing to rest on thy house.”