John 14:6 (NIV)
I am the way and the truth and the life. No one comes to the father exept through Me.
People often cofuse truth with facts. Things that we see, touch, feel and sense are facts but may not always be true and can be fakes. Truth isn't a doctrine or philosophy, but a person, i.e., the Lord Jesus Christ. Christ isn't preaching the truth, He is the Truth. To be true to God and be in right standing with Him, one has to know the Lord Jesus who is the absolute Truth.