Like yourself, the atheists also believe that the words of the Lord as spoken through his prophets, don't have to be true.
But I, have faith in the words of the Lord, and believe that his words as spoken through his chosen prophets are true.
I said
What I mean is they don't have to be true, for us to be able to believe them. We can use our faith.
Rom 4:17-18
17 (as it is written, "I have made you a father of many nations") in the presence of Him whom he believed-- God, who gives life to the dead and calls those things which do not exist as though they did;
18 who, contrary to hope, in hope believed, so that he became the father of many nations, according to what was spoken, "So shall your descendants be."
(NKJ)