Well friend, I wasn’t a Christian all my life either until I experienced a healing miracle first hand on myself. I then did a study at the library-no internet then—and I found a book showing all the OT prophecies that were fulfilled with The first coming of Jesus. There were dozens and dozens they were fulfilled just as they were written. We know the OT was around 300 years before Jesus because it was translated into Greek in 270BC and we still have copies of that text. This book had to be inspired by God to know all these things before they happened. Anyway I continued my study and listening to different preachers. I culled the ones that would give their own interpretation. I was fully convicted in 1989 and was baptized and I have never looked back. I continue to study every day. I hope God calls you into the gospel of our Savior. Peace.