2nd Chronicles 32:5

2 And when Hezekiah saw that Sennacherib had come for the purpose of fighting against Jerusalem,

3 He took up with his rulers and men of war the question of stopping up the water-springs outside the town; and they gave him their support.

4 So they got together a great number of people, and had all the water-springs and the stream flowing through the land stopped up, saying, Why let the kings of Assyria come and have much water?

5 Then he took heart, building up the wall where it was broken down, and making its towers higher, and building another wall outside; and he made strong the Millo in the town of David, and got together a great store of all sorts of instruments of war.

6 And he put war chiefs over the people, and sent for them all to come together to him in the wide place at the doorway into the town, and to give them heart he said to them,

7 Be strong and take heart; have no fear, and do not be troubled on account of the king of Assyria and all the great army with him: for there is a greater with us.

8 With him is an arm of flesh; but we have the Lord our God, helping us and fighting for us. And the people put their faith in what Hezekiah, king of Judah, said.