Translation:

45. Then We sent Moses and his brother Aaron with Our Signs and authority manifest

Notes (Tafseer)

2903. Moses and Aaron had a twofold mission: (1) to Pharaoh and his Court, which failed because of Egyptian arrogance; (2) to the Israelites, for whom the Law was received on Mount Sinai, but they repeatedly rebelled against Allah. In both cases there were miracles ("Clear Signs") and other proofs which showed that they came at Allah's command and were inspired by His authority.