Rabbi Ḥama said: At twelve years old, Moses our master was torn from his father’s house. Why was it so? It is because had he grown in his father’s home, and come and related these signs to Israel, they would not have believed him. They would have said: Your father passed it to you; as Joseph passed it to Levi, and Levi to Kehat, and Kehat to Amram.2A midrash (Shemot Rabba 3:8, 5:13) states that when Moses said, in the name of God, “I have remembered [pakod pakadti] you” (Exodus 3:16), the elders believed him because there was an oral tradition that the redeemer of Israel would say those words when he revealed himself.
That is why he was torn from his father’s home. Therefore, when he went and told Israel all these matters, they believed him, as it is stated: “The people believed” (Exodus 4:31).