None of us lived back then. So, how can we know that Genesis applies to us?

Hey man: I have a problem believing that Jesus Chris is our Lord (the Messiah) not faith problem in the words of G-d.
I believe in G-d, is his son that I don't have too much belief in him.
Hope this is understandable English enough.
Thank You.
We are not supposed to use God's name in vain. The word "God" is not His name. He told the Hebrew people, the Israelites, that He had one name for them to call Him by. It is listed in the Torah. Then they invented all kinds of other names for Him. God and G-d are not His names.
