1. How may I know that there is a God?
The Word became flesh and made his dwelling among us. We have seen his glory, the glory of the One and Only, who came from the Father, full of grace and truth. John testifies concerning him. He cries out, saying, “This was he of whom I said, ‘He who comes after me has surpassed me because he was before me.'” From the fullness of his grace we have all received one blessing after another. For the law was given through Moses; grace and truth came through Jesus Christ. No one has ever seen God, but God the One and Only, who is at the Father’s side, has made him known. John 1:14, 18 (Also see: John 14:9-4; John 20: 29-31; Romans 1:20; John 8:47)
2. How can I know that the Bible is true?
You diligently study the Scriptures because you think that by them you possess eternal life. These are the Scriptures that testify about me, yet you refuse to come to me to have life. John 5:39, 40 (Also see: 7:17; Acts 17:11, 12)