It seems that Israel simply cannot handle the idea that the Lord would place Moses and Aaron in authority over them. Even after signs and wonders, including those wherein the Lord snuffs out the rebellious, they continue to groan and complain. So today, the Lord decides to put their complaints to rest with a unique sign that will stand as a testimony for generations to come. Later, the people rebel again when there is no water to be found. God instructs Moses to speak to a rock so that it will produce water, demonstrating God’s holiness, but Moses fails to trust the Lord’s instruction. In so doing, he is told that he and Aaron will not enter the land with the next generation.