اللى تقول عليه موسى تلتقيه فرعون
Elli teqoul aleh mousa telteqih far’on
Translation: He whom you take to be Moses, turns out to be pharaoh.
Meaning: Appearances can be deceptive. A meek looking person, whom you think as trustworthy as Moses, may yet commit heinous acts, as those of pharaoh. The Judeo-Christian tradition concerning the Moses-Pharaoh confrontation, as unsympathetic as it is to Egyptian heritage, is unchallenged in Egypt’s folk culture.
Source: Egyptian Proverbs, (Al-Ahram Center for Translation and Publishing, 1986) by Ahmed Taymour Pasha,
Translated by: Nabil Shawkat
https://english.ahram.org.eg/News/132898.aspx