Matthew Poole and continuators on Ezekiel 4:10

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

The mean and course Bread which thou must eat and be content with.

Not full, as once, not as much as you will, but a small pittance delivered by weight to all, which bespeaks the extream penury the City should be brought to.

Some say 5 ounces; others say 10 ounces, the greater of the two scarce enough to maintain Life, and yet 'tis probable enough 'twas but 5 ounces of Bread which was his allowance. A hard case when the Law of the 12 Tables allowed a pound of Bread to Prisoners dayly for their diet. But here the Prophet hath but halt that allowance if the twenty shekels were shekels of the Sanctuary, and he hath but a quarter of that allowance if they were common shekels, by which his allowance was weighed.

At set hours this was weighed out, and no more could be had at any other time, whether Morning or Evening, once in four and twenty hours, or once in twelve hours, still at the appointed hour; and possibly there might be different hours appointed to different persons, and every one must observe his own time.