سُبْحَانَ ٱللَّٰهِ
Holy Qur'an
Al-Qur'an
Kids Qur'an
Implying that God Himself will slake their spiritual thirst by purifying their inner selves "of all envy, and rancour, and malice, and all that leads to harm, and all that is base in man's nature" (Ibn Kathir, quoting 'Ali ibn Abi Talib), and by allowing them to "drink" of His Own Light (Razi).
See 18:31 (where "bracelets of gold" are mentioned) and the corresponding note [41].
The word ṭahûr implies that once the believers take that pure drink, there will be no bad feelings in their hearts or ailments in their bodies.
Cf. xviii. 31. The bracelets are there said to be of gold.
This would seem to be the culmination of the honour which the Blessed receive at the Royal and Divine Banquet. The words in the next verse express the sort of speech which will make the Guest a denizen of Heaven.