There are arguments for atheism, and they do not depend, and never did depend, upon science. They are arguable enough, as far as they go, upon a general survey of life; only it happens to be a superficial survey of life.
To justify Christian morality because it provides a foundation of morality, instead of showing the necessity of Christian morality from the truth of Christianity, is a very dangerous inversion.
A large stone presented by the archangel Gabriel to the patriarch Abraham, and preserved at Mecca. The patriarch had perhaps asked the archangel for bread.