Maarif-ul-Quran (En) - Al-Anbiyaa : 31
وَ جَعَلْنَا فِی الْاَرْضِ رَوَاسِیَ اَنْ تَمِیْدَ بِهِمْ١۪ وَ جَعَلْنَا فِیْهَا فِجَاجًا سُبُلًا لَّعَلَّهُمْ یَهْتَدُوْنَ
And We created mountains on the earth, lest it should shake with them, and We have made therein paths and ways, so that they are guided.
وَجَعَلْنَا فِي الْأَرْ‌ضِ رَ‌وَاسِيَ أَن تَمِيدَ بِهِمْ (And We created mountains on the earth, lest it should shake with them. 21:31) The word مَید (mayd) in Arabic language means to be convulsed. Therefore, the meaning of this verse is that Allah Ta` ala has planted mountains on the earth to hold it in place because any violent movement of the earth would be catastrophic to those who live on it.
Top