Wisdom 11:6

6 Because those enemies decreed that the babies of your people should be killed, you stirred up the sources of their everflowing river and made it foul with blood. In the desert you let your people go thirsty, to give them a taste of how you had punished their enemies. And then, when they least expected it, you gave them plenty of water.

Wisdom 11:6 In-Context

4 When your people grew thirsty, they called to you, Lord, and you gave them water flowing out of solid rock.
5 The disasters that punished the Egyptians saved your people when they were in trouble.
6 Because those enemies decreed that the babies of your people should be killed, you stirred up the sources of their everflowing river and made it foul with blood. In the desert you let your people go thirsty, to give them a taste of how you had punished their enemies. And then, when they least expected it, you gave them plenty of water.
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.