Truth appeared; all it's emanations knew it.  They greeted the Father in truth with a perfect power that joins them with the Father.  For, as for everyone who loves the truth — because the truth is the mouth of the Father; his tongue is the Holy Spirit — he who is joined to the truth is joined to the Father's mouth by his tongue, whenever he is to receive the Holy Spirit, since this is the manifestation of the Father and his revelation to his aeons.

The truth shall set you free.  But how do you know what is true and what isn't?  Some Christians would say that if it's in the Bible it's true, ignoring the fact that the Bible has been edited many times, and often for political reasons rather than religious ones.  The only real source of truth is God, so if you want to know truth you must learn to communicate with God and with his angels.