But there was a certain man called Simon, who previously practiced sorcery in the city and astonished the people of Samaria, claiming that he was someone great, 10 to whom they all gave heed, from the least to the greatest, saying, “This man is the great power of God.” 11 And they heeded him because he had astonished them with his sorceries for a long time. 12 But when they believed Philip as he preached the things concerning the kingdom of God and the name of Jesus Christ, both men and women were baptized. 13 Then Simon himself also believed; and when he was baptized he continued with Philip, and was amazed, seeing the miracles and signs which were done. — Acts 8:9-13.
Simon was a highly reputable sorcerer of Samaria, who astonished the people by his sorceries for a long time. But when the people believed the gospel preached by Philip, they were baptized. Simon himself also believed and was baptized. He continued with Philip and was amazed by the miracles and signs done by him.