"Because you disdained all my counsel, and would have none of my rebuke, I also will laugh at your calamity; I will mock when your terror comes, when your terror comes like a storm, and your destruction comes like a whirlwind, when distress and anguish come upon you. Then they will call on me, but I will not answer; they will seek me diligently, but they will not find me. Because they hated knowledge and did not choose the fear of the LORD, they would have none of my counsel and despised my every rebuke." (Prov. 1:25-30)

An estimated 500,000 tons of water rush over Niagara Falls every minute. On March 29, 1948, the falls suddenly stopped. People living within the sound of the falls were awakened by the overwhelming silence. They believed it was a sign that the world was coming to an end. It was thirty hours before the rush of water resumed.

What happened? Heavy winds had set the ice fields of Lake Erie in motion. Tons of ice jammed the Niagara River entrance near Buffalo and stopped the flow of the river until the ice shifted again. (Merle Mees in Fresh Illustrations for Preaching & Teaching)

The flow of God's grace is blocked by willful disobedience and cold indifference.