Muhammad in Islam of all pagan idols. In later years in Medina, Muhammad unified the different tribes of Arabia under Islam, carried out social and religious reforms. By the time he died in 632, almost all the tribes of the Arabian Peninsula had converted to Islam. The Quran enumerates little about Muhammad's early life or other biographic details, but it talks about his prophetic mission, his moral excellence, and theological issues regarding Muhammad. According to the Quran, Muhammad is the last in a chain of prophets sent by God (). Throughout the Quran, Muhammad is referred to as "Messenger", "Messenger of God", and
Prophets and messengers in Islam and Malachi were the last prophets, all of whom lived at the end of the 70-year Babylonian exile. With them, the authentic period of "Nevuah" ("prophecy") died, and nowadays only the "Bath Kol" (בת קול, lit. "daughter of a voice", "voice of God") exists (Sanhedrin 11a). In the New Testament, however, the word "messenger" becomes more frequent, sometimes in association with the concept of a prophet. "Messenger" may refer to Jesus, to his Apostles and to John the Baptist. But the last book of the Old Testament, the Book of Malachi, speaks of a messenger that Christian commentators interpret as