Quran 57:8 — Iron (Al-Hadeed)

Why should you not believe in GOD when the messenger is inviting you to believe in your Lord? He has taken a pledge from you, if you are believers.

[57:7] Believe in GOD and His messenger, and give from what He has bestowed upon you. Those among you who believe and give (to charity) have deserved a great recompense.

[57:9] He is the One who sends down to His servant clear revelations, in order to lead you out of the darkness into the light. GOD is Compassionate towards you, Most Merciful.