Foundation of faith and knowledge

أَلَمْ تَرَ كَيْفَ ضَرَبَ ٱللَّهُ مَثَلًا كَلِمَةً طَيِّبَةً كَشَجَرَةٍ طَيِّبَةٍ أَصْلُهَا ثَابِتٌ وَفَرْعُهَا فِى ٱلسَّمَآءِ

Have you not considered how Allāh presents an example, [making] a good word like a good tree, whose root is firmly fixed and its branches [high] in the sky?