Ta Ha 20:21 قال خذها ولا تخف سنعيدها سيرتها الاولى ٢١

The Stick of Musa turned into a Snake

This was a proof from Allah for Musa and a great miracle. This was something that broke through the boundaries of what is considered normal, thus, it was a brilliant evidence that none but Allah could do. It was also a proof that no one could come with the likes