20 Now in the morning, about the time when the offering was made, they saw water flowing from the direction of Edom till the country was full of water. 21 Now all Moab, hearing that the kings had come to make war against them, got together all who were able to take up arms and went forward to the edge of the country. 22 And early in the morning they got up, when the sun was shining on the water, and they saw the water facing them as red as blood. 23 Then they said, This is blood: it is clear that destruction has come on the kings; they have been fighting one another: now come, Moab, let us take their goods. 24 But when they came to the tents of Israel, the Israelites came out and made a violent attack on the Moabites, so that they went in flight before them; and they went forward still attacking them; 25 Pulling down the towns, covering every good field with stones, stopping up all the water-springs, and cutting down all the good trees; they went on driving Moab before them till only in Kir-hareseth were there any Moabites; and the fighting-men went round the town raining stones on it. 26 And when the king of Moab saw that the fight was going against him, he took with him seven hundred men armed with swords, with the idea of forcing a way through to the king of Aram, but they were not able to do so. 27 Then he took his oldest son, who would have been king after him, offering him as a burned offering on the wall. So there was great wrath against Israel; and they went away from him, back to their country.
Matthew Henry's Commentary on 2 Kings 3:20-27
Commentary on 2 Kings 3:20-27
(Read 2 Kings 3:20-27)
It is a blessing to be favoured with the company of those who have power with God, and can prevail by their prayers. A kingdom may be upheld and prosper, in consequence of the fervent prayers of those who are dear to God. May we place our highest regard upon such as are most precious in his account. When sinners are saying Peace, peace, destruction comes upon them: despair will follow their mad presumption. In Satan's service and at his suggestion, such horrid deeds have been done, as cause the natural feelings of the heart to shudder; like the king of Moab's sacrificing his son. It is well not to urge the worst of men to extremities; we should rather leave them to the judgment of God.