‘And when he was cast out, Pharaoh's daughter took him up, and nourished him for her own son. And Moses was instructed in all the wisdom of the Egyptians, and he was mighty in his words and works.'
But the future deliverer was not brought up by his own people under the instruction of his own rulers, he was brought up under ‘foreign' instruction. He was brought up by Pharaoh's daughter who cared for him as her own son. And there he learned foreign wisdom, and was mighty in word and works (compare Luke 24:19). We have continually the stress that God's deliverers were not brought up in the equivalent of mainstream Judaism. In the same way, he wants them to realise, the Prophet Who had come, who was like Moses (Acts 7:37), was the man of Galilee, not the man of Jerusalem.