Moses, the great negotiator was the first Israelite to run the largest organization of God chosen people. And before him there was no one who has had to manage this large number of God's chosen people at once. Elohim knew that Moses needed to learn how to organize people by clans, tribes, offices.... But before doing so, he was to acquire few skills on the road to becoming the great negotiator. He was sent to the prestigious school of God's wisdom.