Believers come against sorcerers and magicians

Scripture references

Acts 8:9–24 (ASV 1901)

9But there was a certain man, Simon by name, who beforetime in the city used sorcery, and amazed the people of Samaria, giving out that himself was some great one: 10to whom they all gave heed, from the least to the greatest, saying, This man is that power of God which is called Great. 11And they gave heed to him, because that of long time he had amazed them with his sorceries. 12But when they believed Philip preaching good tidings concerning the kingdom of God and the name of Jesus Christ, they were baptized, both men and women. 13And Simon also himself believed: and being baptized, he continued with Philip; and beholding signs and great miracles wrought, he was amazed.

14Now when the apostles tha...

Acts 13:6–8 (ASV 1901)

6And when they had gone through the whole island unto Paphos, they found a certain sorcerer, a false prophet, a Jew, whose name was Bar-Jesus; 7who was with the proconsul, Sergius Paulus, a man of understanding. The same called unto him Barnabas and Saul, and sought to hear the word of God. 8But Elymas the sorcerer (for so is his name by interpretation) withstood them, seeking to turn aside the proconsul from the faith.

Stories

Nkoi and other witch-doctors had bamboozled the people of the Free Congo State with their deceitful art for years, but all that changed when Harry Guinness and other missionaries settled in the Congo. By exposing their tricks, not only were innocent victims freed, but the people as a whole, were free from the fraternity of witch-doctors.
Khama's jettisoning of heathenism for Christianity did not go down well with his father Sekhome - a witch-doctor. One night, after several failed attempts at getting him do his bidding, Sekhome gathered a band of fiery black wizards to make incantations and lay curses on Khama, but valiantly, Khama dispersed their gathering, causing the workers of evil to flee into the darkness of the night.