Musar sobre Exodo 36:6

Moses had not been careful in this respect, had said "please kill me." The previous occasion had not been so serious, since Moses asked to die if G–d would not forgive the Jewish people for their involvement in the golden calf. It was part of his prayer for someone else. This is why his punishment at that time consisted only of his name not being mentioned when the work of the Tabernacle was carried out. This time, however, there were no such extenuating circumstances. The reason that caused Joshua to report to Moses what Eldad and Meydad had said, was that they did so within the camp. He asked Moses to prevent them from prophesying. The word כלאם is the same as in Genesis 8,2, or in Exodus 36,6. In either case it means that something was prevented from happening. Moses did not want to prevent them from saying what was on their minds, and said to Joshua: "why are you jealous on my behalf?"