Class One. The question: Why are the Yidden insisting in remaining at the Yam Suf and collecting wealth, when Moshe is pushing them (away) towards Sinai?
Likutei Sichos vol. 21 Page 77 ff.
Class Two. Answer: there are two holy drives, to collect wealth (which was the current and passing Mitzvah מצוה עוברת) and to go to Har Sinai which is the future. There needs be the tension and conflict, where Moshe pulls and the Yidden resist. The idea that collecting wealth is a divine wish, not just a human passion and desire.
