Have you ever seen the 'Lord Liar Lunatic' logic tree? If not, consider the 'Lord Liar Lunatic' logic tree below.
Unlike the founders of other religions, some of whom were clever politicians, Jesus claimed to be God who created the universe (see John 1 and Colossians 1). Follow the arrows to their theoretical possibilities, as follows:
Jesus' claim can only be true or false. If it's true, then Jesus is God - i.e., Lord.
If Jesus' claim is false and he knew it was false - then he is a "Liar".
If Jesus' claim is false but he sincerely thought it was true, then he is a Lunatic.
There is no possibility other than Lord, Liar or Lunatic, is there? In particular, Jesus could not have been just someone clever because clever people don't walk around claiming to be the Creator of the universe. Given the unprecedented nature of Jesus' claim, Jesus can only be one of the three logical possibilities above: Lord, Liar or Lunatic.*
So do your own research** and upon conclusion either condemn the claimant for having been a big Liar, or pity him for having been a hopeless Lunatic, or worship Him as Lord Creator of the universe. The one thing you cannot do is dismiss Jesus as just a clever man. His unprecedented claim about himself precludes that possibility.
* The Lord, Liar, Lunatic logic tree was first reasoned by C.S. Lewis, an English theologian, during a series of radio broadcasts he gave during the Battle of Britain German aerial bombings of England in the Second World War.
** Your research can start with The Case for Christ, a book, or The Case For A Creator, a video, both by a journalist who presents the logical and scientific evidences for Jesus' deity and creation, including the proof of Jesus' resurrection. Better yet, read the Bible for yourself. If the entire Bible seems daunting, read the Gospel of John, available online for free with a guide (see Bible Verse Study) or without a guide (see or Bible Gateway).