The story continues, some time after Prophet Musa had completed his contract with his father-in-law. He was traveling somewhere with his family when he saw a fire in the distance. He went to explore in the hope that he might get information or be able to bring back a firebrand for his family to use.
When Prophet Musa approached the bush that was burning, he heard a voice coming from it. The voice commanded Prophet Musa to remove his shoes because he was in a sacred valley. The voice identified itself as Allah, and reminded Prophet Musa to serve Him and to keep up his prayers. The voice told Prophet Musa that Allah had made him one of the chosen ones.
Allah then ordered Prophet Musa to throw down his staff, which he used as a walking stick and to beat down branches for his flocks. When the staff was flung down, it turned into a serpent. Allah instructed Prophet Musa to pick the serpent up, and it again turned into a stick. The voice commanded Prophet Musa to thrust his hand under his armpit, and when he removed it the hand was glowing white, yet it did not hurt Prophet Musa . Allah informed Prophet Musa that these two signs, the staff and the hand, would be signs for the Pharoah, to show that Prophet Musa had truly been sent from Allah. Allah wanted Prophet Musa to go to the Pharoah because the Pharoah and his people had strayed far from the acceptable ways of Allah. He also wanted Prophet Musa to lead the children of Israel away from the Pharoah's influence.
Prophet Musa pointed out that he had killed an Egyptian and that he himself would be killed if he returned to Egypt. He was also unsure of his ability to communicate with the Pharoah. He was not a good speaker and asked for the help of his brother, Harun , who was much more eloquent. Allah reassured Prophet Musa on both counts. He promised that Prophet Musa would come to no harm at the hands of the Egyptians. And He agreed both to aid Prophet Musa in addressing the Pharoah and to send along Harun to help out.
In this manner Prophet Musa was called to prophethood, and set out to free the people of Israel from their bondage under the people of Egypt. Insha Allah in the next issue we shall tell of his meetings with the Pharoah.
You can read about this part of the story of Musa in the Quran 20:9-36, 42-48; 26:10-17; and 28:29-35.
Source: Haqq Islam