Quran 18:109 — The Cave (Al-Kahf)

Say, "If the ocean were ink for the words of my Lord, the ocean would run out, before the words of my Lord run out, even if we double the ink supply."

[18:108] Forever they abide therein; they will never want any other substitute.

[18:110] Say, "I am no more than a human like you, being inspired that your god is one god. Those who hope to meet their Lord shall work righteousness, and never worship any other god beside his Lord."