Contrast between faith and disbelief

۞ وَٱضْرِبْ لَهُم مَّثَلًا رَّجُلَيْنِ جَعَلْنَا لِأَحَدِهِمَا جَنَّتَيْنِ مِنْ أَعْنَـٰبٍ وَحَفَفْنَـٰهُمَا بِنَخْلٍ وَجَعَلْنَا بَيْنَهُمَا زَرْعًا

And present to them an example of two men: We granted to one of them two gardens of grapevines, and We bordered them with palm trees and placed between them [fields of] crops.