Chp. 4 verses 2 - 38: Moshe warns the people to follow the commandments meticulously, and to cling to Hashem. If they do so they will be a great nation. He tells them that he will die and not lead them into the land. He warns them what the consequences will be if they do not follow the ways of Hashem. He assures them that the path to forgiveness will always be open for them.
