Chapter 7: Al-A’raf (The Heights), verse 16-18
16. (Iblis) said: “Because You have sent me astray, surely I will sit in wait against them (human beings) on Your Straight Path.
17. Then I will come to them from before them and behind them, from their right and from their left, and…
Learn Islam. Practise Islam. Spread Islam.: Iblis (Lucifer's) Promise to Allah