Joshua took over the leadership of the Jews, after the death of Moses.
Actually Moses started the journey leading the Jews to the promised land, but he died and Joshua took over the job of leading the people to the promised land.
If you are talking about a person, such as Jesus is to Christians, Muhammad is to Muslims, or Buddha is to Buddhists, then the answer is no one. Jews follow God (YHVH) and there is no one before him. In Judaism Moses is seen as the greatest of all prophets and the Jewish Holy Book, the Torah, is the Five Books of Moses. Moses is not held any higher than he is in Christianity, though. Moses is a prophet, and that is all.
As Aaron brother Moses , who was chosen by God to lead the Jews had a speech defect, could be stammering , Aaron spoke for Moses to the great Pharaoh.
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The greatest prophet in Judaism was Moses.
because moses was send by God to free them from the slavery.
Those who were caught in adultery were stoned to death. The Jews followed thei law of Moses , an eye for a eye and a tooth for a tooth.
The Jews did like Moses, and they still do. Moses gave them freedom. If he hadn't done anything, Israel would probably still be under captivity and may not have had the freedom they have now.