Through this verse Allah order His prophet Mohammad (AS), and all those who follow him (MUSLIMS) to believe in that which is sent down to them, and also to believe in that which is sent to all the other prophets such as: ABRAHAM - ISHMAEL - ISAAC - JACOB - THE TRIBES - MOSES AND JESUS; and to make no distinction between any of them. This is because Islam is the religion preached by all the earlier prophets, and the truth that was revealed and taught by all the Divine Books.