Translation:

21. "So I fled from you (all) when I feared you; but my Lord has (since) invested me with judgment (and wisdom) and appointed me as one of the apostles.

Notes (Tafseer)

3150. He accounts for all his movements, much more than Pharaoh had asked for. He has nothing to hide. At that time he was under the influence of fear, and he had fled from him. Now he is serving Allah, the Lord of the Worlds. He has no fear: he is a messenger.