He was the first to translate the Bible into Arabic.

By his conversation Mohammed's detestation of idolatry was confirmed.
After the example of the Christian anchorites in their hermitages in the desert, Mohammed retired to a grotto in Mount Hera, a few miles from Mecca, giving himself up to meditation and prayer.

In this seclusion, contemplating the awful attributes of the Omnipotent and Eternal God, he addressed to his conscience the solemn inquiry, whether he could adopt the dogmas then held in Asiatic Christendom respecting the Trinity, the sonship of Jesus as begotten by the Almighty, the character of Mary as at once a virgin, a mother, and the queen of heaven, without incurring the guilt and the peril of blasphemy.
By his solitary meditations in the grotto Mohammed was drawn to the conclusion that, through the cloud of dogmas and disputations around him, one great truth might be discerned--the unity of God.

Leaning against the stem of a palm-tree, he unfolded his views on this subject to his neighbors and friends, and announced to them that he should dedicate his life to the preaching of that truth.

Again and again, in his sermons and in the Koran, he declared: "I am nothing but a public preacher....