He didn't. God gave the Israelites water (Exodus ch.15, ch.17, and Numbers ch.20).
Moses transmitted the people's request for water to God. Each time, God told Moses to do a certain act (throwing a stick into bitter water; hitting a stone; speaking to a stone), and then God miraculously provided water.
Water came from the rock when Moses hit the rock with his rod.
Moses hit the rock because he was frustrated and angry with the Israelites for complaining about not having water.
Yes, according to the Bible, Moses struck a rock to bring forth water in the desert.
According to tradition, it was on (or shortly after) the first of Nisan, 1273 BCE (the beginning of the fortieth year of the Israelites in the wilderness). Nisan is roughly equivalent to April.
Moses struck the rock to bring forth water in the desert at Horeb, also known as Mount Sinai.
This was at Meribah (also known as Kadesh-barnea) and is South-West of the Dead Sea in the top corner of the Sinai peninsula:-Numbers 20:7-13 13 Then the LORD spoke to Moses:8 "Take the staff and assemble the community, you and Aaron your brother, and then speak to the rock before their eyes. It will pour forth its water, and you will bring water out of the rock for them, and so you will give the community and their beasts water to drink."9 So Moses took the staff from before the LORD, just as he commanded him.10 Then Moses and Aaron gathered the community together in front of the rock, and he said to them, "Listen, you rebels, must we bring water out of this rock for you?"11 Thenraised his hand, and Mosesstruck the rock twice with his staff. And water came out abundantly. So the community drank, and their beasts drank too. 12 Then the LORD spoke to Moses and Aaron, "Because you did not trust me enough to show me as holy before the Israelites, therefore you will not bring this community into the land I have given them."13 These are the waters of Meribah, because the Israelites contended with the LORD, and his holiness was maintained among them.
The people wanted water and Moses got impatient. He struck the rock with his rod without God's command and he was punished for that.
God was angry with Moses because Moses did not follow God's instructions to speak to a rock to bring forth water, but instead he struck the rock with his staff out of frustration.
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.
Manna? God ordered Moses to speak to the rock and it would gush forth with water. Instead, Moses struck the rock with his staff. God still provided water to the people, but Moses' punishment for disobeying what Jehovah had spoken was he would not be allowed into the promised land.
Yes, according to the Bible, Moses struck a rock to bring forth water as a miraculous act during the Israelites' journey in the wilderness.
God was angry with Moses because Moses did not follow God's instructions when striking a rock to bring forth water for the Israelites.