ותקרא שמו משה ותאמר כי מן המים משיתהו (שמות ב:י) 

Moshe Rabbeinu had ten names: “Moshe, Nesanal, Shmaya, Avi Socho, Avi Zenoach, Chaver, Yekusiel, Tovia, Yered, Avigdor.”  If so, why does the Torah call him “Moshe” –  a name given to him by the daughter of Pharaoh?  The Torah wants to teach us the greatness of the midah of rachmanus – the trait of compassion.  The reason she called him “Moshe” is because of her kindness “כי מן המים משיתהו” – she withdrew him from the river Nile and this is why the Torah explicitly uses this name.