So remember Me that I may remember you, and be thankful to Me and do not become unappreciative.
Translation endnotes
[2:152] The word KaFaRa is used both as an antonym of SHaKaRa (appreciate) and amana (acknowledge). Since it is more frequently contrasted with amana, the word KaFaRa (not appreciate/become ungrateful) evolves in the Quran and becomes a distinguishing description and descriptive noun for the antagonist and bigoted rejecters of the message. We could not translate the word kafara consistently with one English word without adding "don't" or "un-." Our choice of "unappreciative" or "did not appreciate," did not usually fit well in the translation of some verses. Thus, we rendered the meaning of KaFaRa interchangeably as "lack of appreciation," or "rejection." See 86:3.