It is because they do not acknowledge God as their Master, but instead try to exalt themselves higher than God. To such people, God has not permitted the understanding of the gospel Truth of the water and the Spirit.
No reconocen a Dios como Su Maestro, sino que se exaltan a sí mismos más que a Dios. A esta gente, Dios nos le ha permitido conocer la Verdad del Evangelio del agua y el Espíritu.