There is NO PROOF in the scientific sense. Faith simply can not be
proved or disproved.
I've read varying accounts of how much of man's history is covered
in what we call the Christian Bible, both the O.T. and N.T.
I've read 4400 to over 6000 years. The Bible isn't that old of course
but the writings contained therein go back a long time.
Take the Bible as a whole and themes run congruent throughout
the books.
Worship the one true God the called Yahweh and various other
spellings, in Genesis we have the fall of man, and then the struggles
of mankind to find meaning, make meaning through "god".
In the N.T. we get "salvation" via the shed blood sacrifice of God's only begotten Son who gives up his life to cover the sins of imperfect
man.
There is much, much, more of course and I believe every seeking person
should read the Bible that contains the instructions on how to live
a life that harms no one and is beneficial for the reader in so many
ways.
( It might even bring you closer to God )