What is Truth? Is there a single absolute Truth? What simply about the "Truth" concerning God?
Atheist - there is no supreme being known by some as "God".
Christian - one God that exists in three "persons" - Father, Son and Holy Ghost. God became a man to live a perfect life and die on the cross as a redeeming sacrifice for the sins of mankind.
Muslim - there is only One God with no father, mother, son, daughter, equal, partner or anything comparable to Him. This Supreme Being is known as Allah.
(Note that I left out the agnostics because they straddle the fence and say there may or may not be a "god", they just don't know.)
Now can all three of these be true 1) there is no god, 2) there is a God in 3 persons including Jesus, 3) there is only One God without equal? Although each of the adherents to these 3 faiths (yes, atheism is a belief that there is no god) believe that they have the correct "Truth" about God, none of them can prove conclusively to the other that his "Truth" is actually false. Each of these rely upon their own reasoning based on their faith in what they have been taught, faith in a book, or reliance upon the lack of perceivable evidence.
Like a dog chasing his tail - arround and around we go trying to convince the other of "the Truth".
the truth is only one and the other is wrong..
we all believe that, even we are muslim or jew but we need to tell people which one is really the truth, if they dont want to listen, that's their business but as long as we have told them , that's must be in God's hand who He choose to be ahl jannah... the person that life in the paradise as a reward from He the Almighty