Zechariah 10:1 (NIV)
Ask the Lord for rain in the springtime; it is the Lord who makes the storm clouds. He gives showers of rain to men, and plants of the field to everyone.
John 7:37-39 (NIV)
37On the last and greatest day of the Feast, Jesus stood and said in a loud voice, "If anyone is thirsty, let him come to me and drink.
38Whoever believes in me, as the Scripture has said, streams of living water will flow from within him."
39By this he meant the Spirit, whom those who believed in him were later to receive. Up to that time the Spirit had not been given, since Jesus had not yet been glorified.