*12) In Surahs Al-A`raf and Ash-Shu`araa', the snake has been called thu`ban (a large serpent) but here jaann, a small snake. The reason is that in physical size it was a serpent but in movement it was swift like a small snake. The same thing has been expressed by hayyatun tas `a (a running snake) in Ta Ha: 20. *13) That is, "In My Presence there is no danger of any harm …