Water is and has always been important. If you're asking about the verses in which the Israelites press Moses to see to their water needs (Exodus ch.15, Numbers ch.20), that is because they were in a dry wilderness.
See also:
Why did the Israelites complain?
The Law; food and water
It reminds them of when Moses freed them in the Exodus story
If you mean the Moses of the Old Testament in the Bible, "churches" as buildings did not exist in his time. Jews of his time went to the tabernacle (a large tent used for worshiping God), so that is where Moses would have gone.
moses was a long time before uildig the pyramids, he was in the south of egypt, luxor, and the pyramids are in th north of egypt, gizeh, so no relatinship between moses and the pyramids, the pharaoh during the time of moses was Ramsis II
Because they all have religious resemblances.
it was important to get the water to crops
Moses killed the Egyptian, so he had to wait for forty years until it was God's time to free the Israelites.
I assume you are asking about the old testament story where God told Moses to speak to a rock and water would spring from it. Instead Moses struck the rock with his staff and then water began to flow. So the answer to your question is water.
Exodus 2:10 - And the child grew, and she brought him to Pharaoh's daughter, and he became her son. So she called his name Moses, saying, "Because I drew him out of the water." [NKJV]
seriously? that is a stupid question. of coarse rivers were important you idiot. infact they are still important because without rivers (and lakes) we wouldnt have any fresh water. last time i checked people cant drink salt water without purification which wasnt available a long time ago so thats why they were so important
All five books are credited to Moses, so it's no contest.
so they could use the water