Allah tells us how Musa and his brother Harun came before Fir`awn and his chiefs, and showed them the clear miracles and overwhelming proof that Allah had given them to confirm the truth of what they were saying about Allah being One and that His commandments were to be followed. Fir`awn and his chiefs saw that with their own eyes and realized that it was certainly from Allah, but because of their disbelief and sin they resorted to stubbornness and false arguments. This was because they were too evil and arrogant to follow the truth. They said:
[مَا هَـذَآ إِلاَّ سِحْرٌ مُّفْتَرًى]
(This is nothing but invented magic.) meaning, fabricated and made up. They wanted to oppose him by means of their own tricks and their position and power, but this did not work.