And when Hezekiah saw that Sennacherib was come, and that he was purposed to fight against Jerusalem,

King James Translators' Notes

he was...: Heb. his face was to war

Jamieson-Fausset-Brown Bible Commentary

2-8. when Hezekiah saw that Sennacherib . was purposed to fight against Jerusalem-An account of the means taken to fortify Jerusalem against the threatened siege is given only in this passage. The polluting or filling up of wells, and the altering of the course of rivers, is an old practice that still obtains in the wars of the East. Hezekiah's plan was to cover the fountain heads, so that they might not be discovered by the enemy, and to carry the water by subterranean channels or pipes into the city-a plan which, while it would secure a constant supply to the inhabitants, would distress the besiegers, as the country all around Jerusalem was very destitute of water.

Matthew Henry's Concise Commentary

32:1-23 Those who trust God with their safety, must use proper means, else they tempt him. God will provide, but so must we also. Hezekiah gathered his people together, and spake comfortably to them. A believing confidence in God, will raise us above the prevailing fear of man. Let the good subjects and soldiers of Jesus Christ, rest upon his word, and boldly say, Since God is for us, who can be against us? By the favour of God, enemies are lost, and friends gained.