Commentaries:
Barnes' Notes
As the donkey was "unclean," it would not be eaten except in the last resort; and its head would be its worst and cheapest part.
Cab - This measure is not mentioned elsewhere in Scripture. According to the rabbinical writers it was the smallest of all the dry measures in use among the Jews, being the sixth part of a seah, which was the third part of an ephah. If it was about equal to two of our quarts, the "fourth part of a cab" would be about a pint.
Dove' s dung - Most commentators understand by this expression a sort of pulse which is called "dove' s dung," or "sparrow' s dung" in Arabic. But it is possible that the actual excrement of pigeons is meant. The records of sieges show that both animal and human excrement have been used as food - under circumstances of extreme necessity.
Other Barnes' Notes entries containing 2 Kings 6:25:
Leviticus 26:3-45
Amos 6:9
DISCLAIMER: Church of the Great God (CGG) provides these resources to aid the individual in studying the Bible. However, it is up to the individual to "prove all things, and hold fast to that which is good" (I Thessalonians 5:21). The content of these resources does not necessarily reflect the views of CGG. They are provided for information purposes only.