Gratitude (Shukr) as a fundamental spiritual obligation

يَعْمَلُونَ لَهُۥ مَا يَشَآءُ مِن مَّحَـٰرِيبَ وَتَمَـٰثِيلَ وَجِفَانٍ كَٱلْجَوَابِ وَقُدُورٍ رَّاسِيَـٰتٍ ۚ ٱعْمَلُوٓا۟ ءَالَ دَاوُۥدَ شُكْرًا ۚ وَقَلِيلٌ مِّنْ عِبَادِىَ ٱلشَّكُورُ

They made for him what he willed of elevated chambers, statues, bowls like reservoirs, and stationary kettles. [We said], "Work, O family of David, in gratitude." And few of My servants are grateful.