Answer:Slaves. Because it was against the law
Homesteaders faced the problem of constructing shelter very quickly. To
do so, they often constructed simple cabins. Some also made use of what
was in their environment and built sod houses. These houses had the
advantage of being inexpensive to build, as the homesteaders only needed
to buy materials for constructing the windows, a door, and sometimes a
roof, and sod was cool in the summer and warm in the winter.
Moses didn't want to undertake an abortive mission. He wanted the Exodus to unfold in a way that would best serve to sanctify God's name.