A Muslim believes in all scriptures and revelations of God, as they were complete and in their original versions.

Revelations were given to guide the people to the right path of God. The Quran refers to the books revealed to Abrahim, Moses, David, Jesus and Muhammad.

Today, the books before the Quran do not exist in their original form. They are lost or corrupted or concealed. Weakness in the early period of Judaism and Christianity are partly responsible.

Today the Quran is the only authentic and complete book of God. No scholar has questioned the fact that the Quran today is the same as it was more than 1400 years ago. Muslims till today memorize the Quran word by word as a whole or in part.

God who revealed the Quran is protecting it from being lost, corrupted, or concealed.