By “the Good Word,” most perceive it to mean being complimentative, expressing love or speaking in an inspiring manner. However, the type of “good word” Allah refers to in the Quran means something quite other, and is more comprehensive, although it also includes the above-mentioned meanings. Allah describes what the good word is with the verse; Who could say anything better than one who summons to Allah, and acts rightly and says, “I am of those who submit to Allah”? (Surah Fussilat, 33) In other words, the “Good Word” is that which summons people to Allah and the Quran. And, those who utter this good word, that is, those who call to Allah, are the believers. This book, rather than merely describing what the Good Word is, also focuses on the loss upon those who avoid it, in the light of the verses of the Quran. Unlike those who resist the call, however, those who adhere to it will be rewarded generously. This truth may be recognized in this world, but will become apparent in the Hereafter. Witnessing the ultimate futility of one’s efforts once in Allah’s presence will surely be a profound disappointment, incomparable to any other form of grief. The only way to avoid this disappointment is to adhere to the Quran, and every Good Word offered to remind us of its verses, before it is too late.