He wrote: “Keep on teaching and encouraging one another with psalms, praises to God, spiritual songs sung with gratitude, singing in your hearts to Jehovah. ” ​ — Col.
إِشْرَاقُ ٱلْعَيْنَيْنِ يُفَرِّحُ ٱلْقَلْبَ ،‏ وَٱلْخَبَرُ ٱلطَّيِّبُ يُسَمِّنُ ٱلْعِظَامَ » .‏