I'm not sure why it seems so unclear to you, only the religion based on the bible declares there is only one God, and He is the creator of everything we see, look around do you see any design in creation, is there evidence of design, that is the real question, if there is evidence of design then its obvious there is a designer and only the God of the bible makes the claim as being the designer, that narrows your picks down to about three Judiasm, Christianity.....Islam doesn't reconize the bible as true so their out.......now the whole bible is a testimony about God trying to reconcile humanity back into a place of good standing and relationship with Him, It is all about the Messiah who will come to reconcile man back to God......Judiasm rejects the Messiah Jesus and are still looking for their Messiah. Jesus came and reconciled man back to God, by making Himself the sacrifice for all our sins, since He rose from the dead and was witnessed by hundreds, He said He would come again, but first a terrible ruler will come first he will say he is God and will do amazing things even calling fire down from heaven, most of the world will be deceived, probably most of the Jews will think this is their Messiah, he will even stand in their rebuilt temple and declare that he is God. Then signs in heaven will be seen, the moon will turn red, and the sun will not give its light, and stars will be seen falling from the sky in record numbers, after this happens Jesus will return and destroy everything that stands against Him, it will be very important that you chose sides before He gets here as there will be eternal consequences for what side your found on