وَٱلْجِبَالَ أَرْسَىٰهَا
“And the mountains He set firmly”
And the mountains did He firmly fix below
This refers to the deep root of the mountains that also helps in maintaining the crustal balance of the earth which was mentioned in the previous surah as well.
And the mountains did He firmly fix below
This refers to the deep root of the mountains that also helps in maintaining the crustal balance of the earth which was mentioned in the previous surah as well.