And thy food which thou shalt eat shall be by weight, twenty shekels a day: from time to time shalt thou eat it.

You are to weigh out twenty shekels of food to eat each day, and you are to eat it at set times.

And thy food that thou dost eat is by weight, twenty shekels daily; from time to time thou dost eat it.

And thy meat which thou shalt eat shall be by weight, twenty shekels a day: from time to time shalt thou eat it.