Truth appeared: all its 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.

If you want to know truth, speak to God.  God knows the truth in all matters—no speculation, no theories, He knows.  And those of us who learn God's truth, and share it with others are doing the work of God and the Beings of Light and will receive the Holy Spirit.
Note: The Gospel of truth is part of the Nag Hammadi Library.