A. Yusuf Ali:Translation:
Moses said, "You knowest well that these things
have been sent down by none but the Lord of the
heavens and the earth as eye-opening 2311
evidence: and I consider you indeed, O Pharaoh, to be
one doomed to destruction!"

Muhammad Asad:Translation:
Answered [Moses]: "Thou knowest well that none but the Sustainer of the heavens and the earth has bestowed these [miraculous signs] from on high, as a means of insight [for thee]; 123 and, verily, O Pharaoh, [since thou hast chosen to reject them;] I think that thou art utterly lost!"
2311 We can well suppose Moses to ask Pharaoh to recall all the past history of Moses, for Moses had been brought up in Pharaoh's palace in all the learning of the Egyptians. He could not therefore be mad, or a simpleton worked on by Egyptian magic. What he was going to show was something far greater; it was not the deceptive magic of Pharaoh's sorcerers, but true Signs that came from Allah, the Lord of all power. They were to open the eyes of his people, and if Pharaoh resisted faith, Moses warns him that Pharaoh in that case was doomed to destruction. This is the course of the soul that sinks down by Pride! (R).