it's very simple, anon.
'by their fruits you will know them'
if one is here with fragments of scripture pretending to speak about 'the Truth and The Light' but that one's real function is to waste time, and the fruit it wants is discord and conflict, then that one is not doing 'Truth' is is doing doing discord.
That one doesn't have a polite conversation but does a holier than thou pontification. It often tells others that they 'condemn' and 'accuse' it which is ironic because by doing that it condemns and accuses them.
fairly straight forward to see through that nonsense.
if you encounter such a one you might not even be a human being but conflict software.
if they seek the fruit of confrontation and discord they aren't proselytizing The Truth and The Light.