تفسير : (and moses conceived a fear in his mind) moses concealed his fear of them. he was afraid that they would kill all those who believed in him, if he failed to defeat them.
Jalāl al-Dīn al-Maḥallī
تفسير : and moses sensed fear within himself, that is to say, he feared that if [the effect of] their sorcery was of the same kind as his miracle, he would become suspect in people’s minds and they would not believe in him.