It is widely known all the clashes that followers of Christianity, Judaism and Islam have had throughout history. Millions of people have died and rivers of blood have been spilled as a result of the doctrinal differences that divide the three Abrahamic religions. But what is not widely known is that the archangel Gabriel had a determining role in the appearance of any of those three religions. So we have, in the book of Daniel the prophet, the appearance of Gabriel is reported announcing him that a king would appear in the future who "would try to change the festivities and the law," but God would destroy him (Daniel 7:25). Five centuries later, the same archangel Gabriel appeared to virgin Mary in order to announce her the birth of Jesus, the "Son of God" (Luke 1:32) . Ironically, Jesus tried to change the festivities and the Jewish laws and his attempt resulted in the emergence of a new religion: Christianity, a religion contradictory to Judaism. Six centuries later, that same archangel Gabriel would appear to the prophet Mohammed, in order to dictate him the Koran, which resulted in the emergence of a new contradictory religion: Islam. Among other things, Gabriel told Muhammad that "God has no son" (Quran 23:93) and that "the Messiah, son of Mary, is but an apostle, like the other apostles who preceded him." (Quran 5:79). So, according to the testimonies recorded in those sacred books, archangel Gabriel would have had a destabilizing activity throughout history. The question is WHY?