19
Then the children of Israel cried unto the Lord their God, because their heart failed, for all their enemies had compassed them round about, and there was no way to escape out from among them.
17
So the camp of the children of Ammon departed, and with them five thousand of the Assyrians, and they pitched in the valley, and took the waters, and the fountains of the waters of the children of Israel.
18
Then the children of Esau went up with the children of Ammon, and camped in the hill country over against Dothaim: and they sent some of them toward the south, and toward the east over against Ekrebel, which is near unto Chusi, that is upon the brook Mochmur; and the rest of the army of the Assyrians camped in the plain, and covered the face of the whole land; and their tents and carriages were pitched to a very great multitude.
19
Then the children of Israel cried unto the Lord their God, because their heart failed, for all their enemies had compassed them round about, and there was no way to escape out from among them.
20
Thus all the company of Assur remained about them, both their footmen, chariots, and horsemen, four and thirty days, so that all their vessels of water failed all the inhibitants of Bethulia.
21
And the cisterns were emptied, and they had not water to drink their fill for one day; for they gave them drink by measure.
The Brenton translation of the Septuagint is in the public domain.