The Divine Power of the Language of the Holy Qur'an

14:24. Seest thou not how Allah sets forth a parable? a goodly Word like a goodly tree whose root is firmly fixed and its branches (reach) to the heavens  

14:25. It brings forth its fruit at all times by the leave of its Lord.  So Allah sets forth parables for men in order that they may receive admonition. 

14:26. And the parable of an evil Word is that of an evil tree.  It is torn up by the root from the surface of the earth: it has no stability. 

14:27. Allah will establish in strength those who believe with the Word that stands firm in this world and in the Hereafter; but Allah will leave to stray those who do wrong: Allah doeth what He willeth.