3 Bible Verses about Non Existence

as it is written, I have made you a father of many nations before God in whom he believed, who makes the dead alive and calls things which do not exist as existing.??18 who against hope believed in hope that he should become a father of many nations according to the saying shall your posterity be.

But formerly, not knowing God you served beings which are not really Gods;

Concerning eating things offered to idols, we know that an idol is nothing in the world, and that there is no other God but one.