The first pasuk of this Parasha raises several questions, the most obvious being: Why does Hashem say to Moshe that he is God? Moshe knows exactly who he is talking to and we all know that Hashem's voice is certainly not to be confused with that of any other speaking creature. So why does God have to so superfluously tell Moshe that he is God?
In order to answer this question, the context of this pasuk should first be briefly clarified: At the end of the last Parasha (Shemot), Aaron and Moshe went to Paroh and demanded the release of the Jewish people, but Paroh refused to fulfill this wish. The result of this conversation is the increased oppression of the Jewish people. Moshe then asks Hashem why he allows the people to be in such a bad way and why Hashem sent him, because since meeting Paroh the people are much worse off than before. Hashem's response is as follows:
The context still doesn't make matters clearer, but perhaps the words "...I am God" are found elsewhere in the Torah that can help us figure out the meaning. The first time these two exact words are together is in the Parsha Lech Lecha when Avraham fears he will not have children, but God assures him that he will have a biological son and says:
The answer to the question posed at the beginning is now obvious: There is a problem in both scenes, both with Moshe and with Avraham. Moses' problem is the Jewish slaves and Abraham's problem is that he has no children. Neither Moses nor Abraham thinks that everything will be fine, but Hashem answers both with the words "I am God".
These words should not introduce God and say who he is, but say that he is omnipotent and can solve any problem, no matter how hopeless it seems. In fact, Abraham gets two sons Yishmael and Yizhak, also the Jewish slaves in Egypt are freed and become one people Am Israel!
The Torah is not a simple book in which words are meaningless and have a superficial meaning. Every word is profound and helps to understand the entire Torah. The words of the Torah are deliberately chosen and always create a logical connection.
The statement of this Dvar Torah is clear: Situations in life often seem hopeless, but we must always remember that Hashem is Hashem!