Sermon Update 8.2021. Whenever you hear a preacher preach on having a good eye, or a single eye (KJV) you will hear them say something about having a single purpose in life. "Be focused. Don't wander." That may be pretty good advice, but it's not what Yeshua was talking about when he mentioned each of these two eyes. What is the meaning then? To understand it we have to understand the concept of idioms, and we have to reach back into the Older Testament and read some key Scriptures.