16 And he said, "Thus says the Lord: 'Make this valley full of ditches.' 17 For thus says the Lord: 'You shall not see wind, nor shall you see rain; yet that valley shall be filled with water, so that you, your cattle, and your animals may drink.' 18 And this is a simple matter in the sight of the Lord; He will also deliver the Moabites into your hand. 19 Also you shall attack every fortified city and every choice city, and shall cut down every good tree, and stop up every spring of water, and ruin every good piece of land with stones."
20 Now it happened in the morning, when the grain offering was offered, that suddenly water came by way of Edom, and the land was filled with water.
Matthew Henry's Commentary on 2 Kings 3:16-20
Commentary on 2 Kings 3:6-19
(Read 2 Kings 3:6-19)
The king of Israel laments their distress, and the danger they were in. He called these kings together, yet he charges it upon Providence. Thus the foolishness of man perverteth his way, and then his heart fretteth against the Lord, Psalm 84:6. We need not inquire whence the water came. God is not tied to second causes. They that sincerely seek for the dew of God's grace, shall have it, and by it be made more than conquerors.
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.