So, Jesus is a liar?

"Jesus is God in human flesh."

So, you are calling him a liar?  Here again is exactly what he said:

Matthew 19:16-17: And, behold, one came and said unto him, Good Master, what good thing shall I do, that I may have eternal life? And he said unto him, Why callest thou me good? there is none good but one, that is, God: but if thou wilt enter into life, keep the commandments.

If he (Jesus) isn't good, and only God ("but one" - not a trinity) is good, then it is impossible for him to be god.

"Jesus said I and the father are one. if you have seen me you have seen the father."

That is consistent with his teaching that - "...the kingdom of god is within you." Everyone has the father within them.  That's what Jesus taught.  That was his primary message.  The kingdom of god is within everyone, if they would only seek it there.  You also have spirit within you, but that doesn't make you a "holy trinity" - which is nowhere in the bible.

So explain why Jesus would say that he wasn't good, that only god is good.  The logic is obvious.  He isn't god!