The proof that Jesus lied.

Jesus must have lied in one of these verses. You get to choose for your self which one it is.

John 5:31 [Jesus speaking]If I bear witness of myself, my witness is not true.

Ok Jesus can't bear his own witness.

John 8:14 Jesus answered and said unto them, Though I bear witness of myself, yet my witness is true: for I know whence I came, and whither I go; but ye cannot tell whence I come, and whither I go.

But Jesus just said his witness for himself is not true?

John 8:18 [Jesus speaking] I am one that bear witness of myself, and the Father that sent me beareth witness of me.

So what is it?