TSK · Exodus 4:10

The Source of Sufficiency Moses answered again,“And if they do not believe me or pay attention to me, but say,‘The LORD has not appeared to you’?”

“Without a doubt you are the people, and wisdom will die with you.

So Moses was trained in all the wisdom of the Egyptians and was powerful in his words and deeds.

because some say,“His letters are weighty and forceful, but his physical presence is weak and his speech is of no account.”