You are reading a tafsir for the group of verses 40:28 to 40:29

The true believer mentioned here was a member of the royal family of Pharaoh and was probably one of the high-ranking officials of the court. This venerable gentleman had been influenced by Moses’ call to the Unity of God. However, he had kept his faith a secret. But, when he saw that Pharaoh intended to kill Moses, he openly came to his support. He defended Moses in a very wise and effective manner. This event teaches us that the dawah process is in itself a power which creates its sympathisers and supporters in the camp of dire opponents also, even if the enemy be as tyrannical as Pharaoh.