'Eyes' in the Bible

That which was from the beginning, which we have listened to, which we have seen with our own eyes, and our own hands have handled concerning the Word of Life--

But he who hates his brother man is in darkness and is walking in darkness; and he does not know where he is going--because the darkness has blinded his eyes.

For the things in the world--the cravings of the earthly nature, the cravings of the eyes, the show and pride of life--they all come, not from the Father, but from the world.