For all that is in the world, the lust of the flesh, the lust of the eyes, and the pride of life, isn't the Father's, but is the world's.

 Here are the Christian criteria of truth. There is an external test. All teaching must be in accordance with the tradition handed down to us in Scripture and in the Church. There is an internal test. All teaching must undergo the test of the Holy Spirit witnessing within our hearts. 