When a child does not want to acknowledge a parent, they close their eyes and cover their ears. Some adults are not much different, they too close their eyes and cover their ears when they do not want to acknowledge God.
They have eyes that see; yet they do not see. Their eyes fail to perceive God and His works. Rather, their eyes perceive God and His works as works of man, nature, or a random aberration.
They have ears that hear; yet they do not understand. They hear, but fail to understand the truth, love and mercy that God proclaims. Rather, they perceive His truth as hate, the love He declaims as restricting their free will, and the mercy He extends as a useless commodity.
A heart turned to the Lord has ears that on “hearing the word, hold it fast in an honest and good heart, and bring forth fruit with patience” (Luke 8:15-16). Blessed are those with a pure heart with eyes that see and ears that hear, for they shall see the face of God.