وَقَاسَمَهُمَاAnd he Qasamahuma,swore to them both by Allah, saying,إِنِّي لَكُمَا لَمِنَ النَّاصِحِينَ"Verily, I am one of the sincere well-wishers for you both."for I was here before you and thus have better knowledge of this place.It is a fact that the believer in Allah might sometimes become the victim of deceit.Qatadah commented on this Ayah,"Shaytan swore by Allah, saying, `I was created before you, and I have better knowledge than you. Therefore, follow me and I will direct you."