//Do not the Unbelievers see that the heavens and the earth were joined together (as one unit of creation), before we clove them asunder?//
Quite a stretch of the imagination to claim that this is a description of the Big Bang. " .. we clove them asunder" describes them being split apart by the active hand of God.
The Big Bang begins with pure radiation. Matter eventually condenses from the fireball entirely as an inevitable unguided consequence of the Laws of Physics. No cloving involved at all. Quite the opposite.