In this sermon Do You Understand, Satan’s desire is to keep people from understanding the Word of God. Satan “hath blinded the minds of them which believe not” (2 Corinthians 4:4). Some hearts do not receive the Word. They are “hardened.” Through continuous witness, prayer, preaching, and the operation of the Spirit, the heart softens. Understanding comes as the person opens his heart to God. The success of the crop (in this story) depended on the condition of the soil and the seed producing fruit. It was not a matter of just sowing seeds without any thought to the results. We seem to rarely notice if people are learning or not.