What does it mean to "worship in truth"? In the early verses of this scripture, Jesus tells the woman that we wouldn't need to go to the mountains or Jerusalem to worship. 


  ...God is a Spirit: and they that worship him must worship him in spirit and in truth. (John 4:20-24)


The spirit part is pretty clear to me but what do we make of worshiping God in truth?

Do we focus on worship in truth as being about the right way of worship or having the right
mindset or perhaps it far
transcends the idea of correctness?
So to worship in spirit means to do so with full purpose of heart. 


  (KJV) Matt 15:8-9 This people draweth nigh unto me with their mouth, and honoureth me with their lips; but their heart is far from me. 9) But in vain they do worship me, teaching for doctrines the commandments of men.


The Lord was speaking about the Pharisees here who outwardly followed all of the commandments of the law of Moses, but inwardly they were vile sinners. Later in the chapter Christ talks about how it is not what goes into us that defiles us (talking about the law of Moses restrictions on food and washing before eating) but what comes out of our hearts. So to worship in truth is to not only worship outwardly but to also worship in your spirit and heart because that is what truly defines a man's belief.